Shading? Roller shutters, sun sails, venetian blinds, awnings

Would you have a few tips on the topic of shading? The heat should stay outside, but the light should not be blocked.

The simplest solution would be roller shutters everywhere plus a sun sail for the south terrace (we don’t like the look of an awning), which would simultaneously shade the south-facing garden windows of the living room.

Alternatives would be:

(1) No shading at all or only interior curtains/blinds/plissees
Could be an option for the street-side north windows (kitchen, study, guest WC) as well as the west windows of the upstairs bathroom
would save costs

(2) Venetian blinds
We don’t like them visually from the inside

(3) Vertical awning, drop-arm awning or Markisolette
Possibly with semi-transparent fabrics

Would (3) be combinable with roller shutters or are both not possible at the same time?
At least we found a combined solution at Gunkel-Rollladen:
link entfernt durch Moderation
But this seems rather to be an uncommon special solution.
For theft protection, roller shutters are supposedly not necessary; burglar-proof window frames are more important, especially since break-ins often happen during the day.
Other ideas are:
1) In the parents’ bedroom it should be completely dark, so definitely roller shutters there.
2) Especially for the children’s rooms above the living room with floor-to-ceiling south-facing windows you would have to come up with something.
3) Lowering all roller shutters during the day as heat protection won’t work, that would be too dark inside the house for us.

The shading must be on the outside, otherwise you will have the heat inside the house. Innen blinds etc. are rubbish regarding summer heat protection.

Yes, I am aware of that, which is why something like that would not be an option on the south side, but rather more so on the north side.

So the best solution is venetian blinds, but you don't like them...

Otherwise, roller shutters are also great for keeping out heat and "too much" light... just lower them to 50-60% and it's already better... moreover, complete darkening is also possible.

Interior solutions are cheap but do not keep out the heat...

Shutters half lowered prevent one from seeing outside at eye level and make one feel excluded from the beautiful sunny weather. Better something semi-transparent, not as solid as a shutter, such as a vertical awning, drop arm awning, or cassette awning, and then completely lowered. Another question: Can vertical awnings, drop arm awnings, or cassette awnings be combined with shutters or not?

So the decision is actually already made... from the way it reads... whether it is combinable can ultimately only be told to you by your window maker... one can accommodate special requests, the other cannot...