-can't trust people (are they nice because they like you or because they're trying to cash in)

-security (you're a more attractive target)

-pressure to continue performing (fear of being a one-hit wonder)

-more to lose, higher expected standard of living (think Mike Tyson)

-not knowing how to manage luxury (live big without blowing it all)

-decisions are more complicated because you have more options

PS These are all speculation because I definitely have the "no money" problems

Then it's impressive that you can imagine them. Maybe you have a novelist's mind. :)

Nah, I just read a lot. Thank you though!

Actually, you're not far off the mark. I would add:

- pressure from friends and family to spend the way they want you to ("Why don't you help your little sister more?")

- can be hard on long-standing friendships because they can't afford to do the things you can afford, and paying for them creates awkward feelings of obligation.

But the fundamental problem with having money you have to decide what to do with it, which is not nearly as easy as you might imagine.

You remind me of a statement I read attributed to Andrew Carnegie, something like (I'm paraphrasing): "I made several hundred million dollars and gave it away, and the giving was incomparably harder than the making."

Also, I suppose that a psychological advantage of not having money is that you can imagine how much better off you'd be if you had it.

I'd put that slightly differently: if you bought heavily into the idea that money will make you happy and then find that it doesn't, then you can be truly lost. As long as you don't have money, it makes it that much easier to figure out what you ought to be doing day to day, which for many people is no small thing.