Best motorised pool cover for child safety?

Hi everyone,

I looking at motorised pool covers for my 3m x 9m pool. There are two types. Hard deck that slides away from pool, and cloth type material that rolls over pool.

My main requirements are:
1. Fully seals pool.
2. Can take human weight. Extra protection for kids.
3. Automatic motorised system.


HARD DECK SLIDE OUT
https://www.youtube.com/watch?v=tDeSEN2d60M

See 1:54 in above video. Anyone done this for their homes? Cost?

Another one is this.
https://www.youtube.com/watch?v=kzTgMALHdKI

FABRIC/SLATE ROLL OUT

https://www.youtube.com/watch?v=i5SO-wym1rc

https://www.youtube.com/watch?v=Kbk5BePIjck
These would need pump on top of fabric to drain out excess water.

Anyone installed these types for their homes?

Please let me know what you guys have.

Thanks all