I'd nope out of this too.

Like, this is aware tourism 101: if you (a tourist) are approached in a public space, it is almost certainly a scam of some sort. Someone wants something from you, and because you're a tourist, you're seen as an easy mark.

No honest business venture needs to rely on predatory advertising and you're just lining yourself up to get scammed if you engage with these people. Best case you'll end up spending money for something that's not worth it (like getting caught by a restaurant hustler and getting expensive sub-par food) and worst case you'll end up getting extorted into walking to the nearest ATM and draining your bank account.