To help those that need a tool to stop them from themselves. Sometimes, the creature part of us gets a hold over oneself, for me especially when I'm tired. In those cases, however much I want to and know I should, it's just so hard to stop the impulse. And when that happens, apps and services such as Youtube/Tiktok/IG etc etc are honed in to take advantage and not let go. It's probably very closely related to addiction (substance/sex/gambling/etc) in how it works.

If you have not experienced this, and don't see the need per the above, I'm happy for you.