Most Helpful Guy
Of course it's worth it, don't be silly. He's not going to dump you because of this. And... he probably has an idea already, but just tell him. Say something like "I really like you, but one thing that's bothering me is that I'm not as well off as you". Trust me, this isn't likely a problem for him at all. It'll bother you more than him likely.
Most Helpful Girl
Money doesn’t define you. Your parents money doesn’t define you. I’m sure this guy would be nice enough to still want you even though you aren’t well off because if he didn’t then he’s an ass and you’re better off without hime. Still I’m sure he wouldn’t be like that. Good luck though.