YouTube was recently sued $170 million for not being complaint with COPPA. Part of their settlement was to ensure that moving forward they are. So big changes are coming to the platform and to anyone making content "for kids". 

YouTube's video on COPPA: https://www.youtube.com/watch?v=-JzXiSkoFKw

Determining if your content is "made for kids": https://support.google.com/youtube/answer/9528076

My YouTube channel: https://youtube.com/clintus