Even by CC standards, there is a monumental leap here which is surprising. Just wow.
Now in terms of pot in the US, there are indeed many people who live in places where pot isn’t legal who think it should be legal. And in my experience, that is especially true of young people. And that includes people who to my knowledge do not use pot themselves. They just do not seem to view pot use as a big deal (even in states where its illegal).
The issue was brought up here about finding drugs when looking through the wallet. In my experience, I would expect someone who thinks that pot should be legal would be less likely to raise the issue of finding drugs than someone who thinks that pot should be illegal.
The idea that everyone should or will view everything the law says is illegal as an absolute wrong seems odd and naïve to me. That people do not view it as an absolute is often a driver of changes in the law. Now no doubt in the meantime, you run the risk of getting caught. Though there is often a lot of subjectivity in terms of that.
And it seems to me if you are in the fake IDs are illegal absolutely camp, you should support turning the wallet into the police rather than to the mother. Let them decide whether to prosecute.