This simple policy then goes on to silence most individual publisher(/self-media) and consolidated the industry into the hands of the few, with no opportunity left for smaller entrepreneurs. This is arguably much worse than allowing children to watch porn online, because this will for sure effect people's whole life in a negative way.
Also, if EU really wants "VPN services to be restricted to adults only", they should just fine the children who uses it, or their parent for allowing it to happen. The same way you fine drivers for traffic violation, but not the road.
And if EU still think that's not enough, maybe they should just cut the cable, like what North Korea did.