LAN, WLAN, bandwidths and contents?

Sorry, but you a) misunderstood me and b) I think your conclusion is too short-sighted.

Then I should also be consistent and lock away all toys. After all, they’re supposed to develop boredom.

Not every toy. But having constant access to always multiple options for mindless entertainment (!) is not good.
To explain: Toy is not equal to toy. Sensory overload devices for audio or video are different than video games. And those are again something else than Duplo or Lego. The difference lies in the mental effort required and also in their nature.

Our son constantly incorporates and adapts the stories he hears and sees into his games. Additionally, songs are invented to accompany the hero of the hour. THAT is what I call creativity!

It is, and because he also does something else, this results. His quota for sensory overload is limited – whether by his own choice or by you/your family doesn’t matter at first.

My son asks me for a fairy tale on the CD player, simply because he wants it himself. Now that’s what I call intrinsic motivation.

And here one must be very careful.
Intrinsic motivation is a product of our upbringing, schooling, media consumption, and later the peer group. Put simply: the more often and longer I accustom a child to certain types of pastimes, the more likely they will want that themselves in the future.
Exactly for this reason, I criticize the "all-availability" of everything at any time: Whoever gets used to that becomes intrinsically motivated to someone who can derive more satisfaction from buying and owning than from activities.
My conclusion from this is simply that children do not have to be granted everything they want, especially not to the extent they would like. For me, console gaming time on the Super Nintendo was limited to 1 hour daily – at my own discretion. TV watching, too. Discman, as well. Limiting Discman was unnecessary, but I would have played TV and Nintendo all day if allowed.
That’s not acute at 3 years old; for me, it was elementary school time.

One could also say, the combination makes the difference...

Can the small tracking watches actually be connected to the WLAN? (Helicopter and stuff)

Then I was already quite right with my assumption. Even if I might be standing alone with my assessment: This is an absolute no-go if it happens regularly. Antisocial.

Oh, now it’s getting exciting. What do you consider antisocial? The children’s movie or the strawberry milk or the fact that my son wishes for peace from any social contacts after 9 hours of daycare?
It’s no different for us. When I come home (and it's not me who is taking care of the child), I throw myself on the couch and want my peace. Either I read or watch TV or check what my YouTube channels have put out. I have never considered myself socially harmful because of that. Maybe I do have potential to appear on RTL.
BUT you do know what antisocial means, right?

: Well, yes, that’s what we do in the last consequence. We try to keep his toy selection limited. The ones he regularly plays with are freely accessible. The rest is hidden in boxes in his play table. He can get to them anytime, but he really has to actively remember that he has them.
It’s similar with his CD player. In the evening, we actively offer it as a sleep aid. During the day, he has to come to it himself.
In other words, we don’t limit by taking something "away" from him, but simply remove it from his sight. At that age, it almost comes down to the same thing.

The children’s movie or the strawberry milk or the fact that my son just wants peace and quiet from any social contacts after 9 hours at daycare?

For me, this is altogether learned bad behavior. Using a CD player as a sleep aid falls into the same category. You convince yourself that your child doesn’t need social contacts after coming from daycare. Sure, sugar and the flickering screen have to be enough when mom and dad would rather watch YouTube alongside it. You lie to yourself consciously or unconsciously instead of seriously engaging with your child. Yes, you can talk to your little one about the day’s events after kindergarten, and even chop vegetables together for dinner, or whatever. Antisocial: Harmful to society – it happens in the long run and on a small scale. Yep.

But I won’t comment further on this, it’s probably pointless anyway and we are not on a pedagogy forum.

Firecracker, I also find your remarks intrusive and inappropriate for an internet forum. If you knew them personally and face to face without witnesses, you could talk like that, but in my opinion not here. Karsten

So we don't limit by "taking something away" from him, but simply remove it from his field of view. At that age, it basically amounts to the same thing.

But this will definitely change as he gets older. And then at some point, the question arises whether access to certain things should have a time limit or not. But you can decide that when the time comes.
What I was really concerned about was the following: Even if, as parents, you sometimes cannot offer an alternative, the background media should still not serve as a substitute. Then the child just has an hour with nothing to do and has to deal with himself and what is there.

In our sports club, you can see among the children in elementary school age who is more often parked in front of the box and who is not. Both social behavior and motor skills vary extremely among peers here. And unfortunately, prejudices are highly likely to be true here—just ask the parents how the rest of the leisure activities look—unfortunately very often accurate.