Giving an opportunity isn't entrapment. It would be if someone said "hey dude, that girl there dropped her phone, do you want it?"

But yeah I get what you mean, and that's what I meant with "there's probably more impactful stuff they could be doing instead"... Because no one who does finders-keepers on someone else's personal belongings (when they can easily see the owner) is a good person tbh.

Normal people lose their stuff all the time; it's a good thing if opportunistic thieves think again before considering hurting an actual person, instead of just being a quota-filler.