I'm not convinced age restrictions like this are a good idea. But yeah, the non-availability of IDs in the US is a self-inflicted problem.

Another example where this plays a role are voter registration and ID requirements for voting in the US. It is entirely bizarre to me how these discussions just accept it as a law of nature that it's expensive and a lot of effort to get an ID. This is something that could be changed.

When one of the only two political parties does not want everyone to vote (cause they’d lose every election) you get what we got…

You may underestimate the levels of classism and racism in the US. Go on and bring up a conversation about it and you'll eventually get someone talking about how that would be socialism and we can't do that.