iPhone Screentime feature makes little sense

What is the point of having the screen time feature if you can just disable it? Say for example I want to enable an app blocker on my phone in order to be more productive. It requires the passcode to enable it. But I can simply disable any blocker just by using the same passcode. Can Apple make it so that my app blockers work? So that if I just get bored I can’t simply disable it then go on YouTube and waste 2 hours of my life?

You could always ask a friend to set your passcode, then you can't bypass it. You know, like parents would set the code on their childrens' devices. Oh, that's a valid use case, which is why it's there.

iPhone Screentime feature makes little sense
 
 
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