Yeah, and social media makes them good subjects to foreign propaganda as they get older and they get more vulnerable. Education can only achieve so much.
I think there is absolutely a need to better regulate both traditional and social media. The EU is better positioned it the latter in the short term, and I think they're doing a decent job lately.
And for sure, there are many other areas where the EU could hypothetically play an important role. It's just that it cannot just decide to give itself the authority to do so, and if it did that would constitute a democratic problem of comparable magnitude. So I think we need to go to the national level to find politicians to criticise for not doing enough in this regard.