Screentime is Pointless

I’ve had Screentime setup on my kids’ iPhones and and iPads since the release. Over the past year, I’ve noticed it continues to fall off and they no longer have limits. I don’t know the exact issue but is very irritating this program is so ineffective. It seems to be noticed only when one of them is constantly on an app that should have a time limit and you notice you haven’t received a request in a long time. Apple, this needs to be addressed assuming you want it to work properly