Who here thinks that after 1 day of dating marriage should be okay?

If she's rich about one hour is enough.

It's legal, so that makes it "okay" in the eyes of the law, in the US. It's not particularly wise, but like a crap shoot sometimes you get the results you want (most of the time you don't). 

I don’t think it’s a particularly smart decision, however, there are people who sincerely feel like they have met their soul mates after one date. If you feel that’s you then go for it. However, marriage is supposed to be a life time decision... divorce had changed the game... but that’s what it’s supposed to be. So It’s better to take time & be careful when making such a massive life decision. 

How much money does she have?