Control of multiple roller shutters

that even a moderately equipped burglar can comfortably open the blinds from the car.

Have you ever tried to crack WPA2, especially if a password with 16, 18 or more characters was set that does not consist of start1234.... or something similar? That will be a long story, a moderately equipped burglar cannot do that.

I doubt that closed blinds without the appropriate protection class really provide burglary protection.

I fully agree. Just visit the police’s burglary prevention advisory service. The blinds are not pushed up at all; they are completely ripped out of the anchoring with the guide rails. With a single jerk.... Blinds are meant for shading, that's what this is about.

On the subject) Radio or not. I doubt anyone would break into my ordinary house.

I see it the same way. Someone who cracks a WPA2 Wi-Fi is not interested in blind control or burglary. Burglars are usually random and break in spontaneously without long preparation. Anyone who spontaneously cracks a WPA2 password deserves my highest respect. You need some equipment and lead time for that. For me, these are two different types of offenders. Conclusion: For the choice of control system, which was the original concern of the OP here, these considerations hardly matter in my opinion.