Raising money in a visiting country -- legal or not legal? [closed]

I know you're not legally able to work for money without some form of Visa issued (other countries -> U.S.A.); but if one were to raise money, that's not actually working for it. If I come to the U.S.A. and start a campaign to raise money, would that be illegal? Visas mention working for money for "aliens" or non-citizens -- what about just raising money? That's like asking for money, but not working for it.

I'd imagine you could, in some conditions/situations, make lots of money doing this.

The big question is, is this legal? Since one isn't working for the money, it seems it should be so.

Raising money seems to be a gray area because it doesn't really count as "working for money."

I'm thinking like Kickstarter or IndieGoGo, but not necessarily in the digital world. Say, for example, a man/woman stands in a street corner and asks for money for some cause, real or otherwise -- that would be raising money, not working for it, although the person in question is still getting money.