[carlmr]

I think request upon needing the permission makes a lot of sense. After all when you do an action and it requests a permission you at least have a chance to understand why it's needed.

Wouldn't it make sense to have temporary permissions? In Linux and Windows you have to sudo/admin also for one single action or a set of actions. You don't give a program access rights for eternity.

Maybe I want to use some app's location service only very rarely and I fear that it has some surveillance features integrated. If I'm ok sharing my location right now, I might not be ok sharing it always. It would be good to have the ability to give it the permission once, until a system restart, or for a limited timeframe.

[caf]

It's not automatic, but you can revoke previously-granted permissions manually by going into Settings -> Apps & Notifications -> {App} -> Permissions.

[carlmr]

I know it's possible, but it completely ignores the reality how humans aren't perfect robots that don't forget or become lazy.