People don't use things that they know are bad, but someone who has grown up in an environment where everyone uses social media for example, can't know that it's bad because they can't experience the alternative anymore. We don't know the effects all the accumulating plastic has on our bodies. The positive effects of these things can be bigger than the negative ones, but we can't know that because we're not even trying to figure it out. Sometimes it might be impossible to find out all the effects before large scale adoption, but still we should at least try. Currently the only study we do before deciding is the one to figure out if it'll make a profit for the owner.