I’m currently using the iOS 18 beta and - during an earlier beta (3 I think) - Screen Time was broken in that it didn’t let you change the settings or extend a session, it would just crash.

This actually made the feature useful! You could no longer just click a button to skip the warnings, you had to actually stop when the time was up. Sure it was a bit annoying but that’s the whole point.

So yea, I’ve been thinking of getting my partner to change the PIN for it so I can’t skip the warnings in the future.

It’s not a bad feature, it’s just often poorly configured and badly implemented.