Good luck with that. If you throw your wallet onto a busy street corner, then by the law nobody is allowed to take it either. But cops will tell you that they have more important things to take care of than victims who take every measurable action at hand to make themselves victims.

There are a lot of things that are immoral (or just rude) to do but not explicitly illegal

Personally I would prefer to live in a society filled with people who are better than thinking "well there's no law against it so it's 100% fine"

Edit: I also don't want to live in a society where every tiny piece of social decency must be encoded in laws to get people to actually be decent