I think a useful framing might be to compare social media to drugs. Many people do various sorts of drugs. Some people can do some drugs and not have their lives destroyed by said drugs. Other people have their lives upended by some drugs, sometimes the same ones that other people do without such serious consequences. We recognize that not all drugs are equivalent and recognize that they need to be taken seriously, limited, or prohibited outright.

Many people, and clearly many teenagers are able to use social media and not be all that harmed. For some, that's clearly not the case.