Every ML recommender driven website should have a control so you can adjust Straight <> Weird. People would love cranking the weirdness up. Instant dopamine hit (unpredictable reward function) and it would bust them out of their filter bubbles.
Let's be fair though, kids ran into that stuff all the time in the past and they turned out mostly fine. I don't see this as big of s problem as the people that get outraged make it sound.
The problem/fear isn't that kids run into this stuff, it's the media/lawyers blowing it out of proportion and negatively affecting the share value of Big Important Companies.
^ hah. that is a genuine problem
But on a serious note, mature services like youtube/instagram can do it - they know more about me than anyone else. How hard would it to be to filter by age!