Social platforms are given a hard time for being walled gardens, but they are clearly getting to a kind of scale where they are hard to police, almost like the internet at large. If they weren't owned by a single company maybe this would be seen differently?
Actually, yes - you’ll have a hard time obtaining SIM cards to use your cell phone without giving ID, precisely for this reason.
Different places have different problems enabled through different technologies or goods, therefore different regulations. The place is huge and devided to about 200 parcels all with different approach of handling issues, check it out here: https://www.google.com/maps
Seriously, hardware is regulated. Check it out.
It's all about response to some kind of abuse and it's different everywhere. In some places regulators mandate that the alcohol bottles must have special plugs that let out alcohol but cannot be re-filled easily because at some point someone started bootleg alcohol business by re-filling the consumed bottles.