Are you male?
I only ask because the way the universe reacts to a boy asking for things and the way it reacts to a girl asking for things is a world different.
Don’t assume that you know what your daughter would have to put up with with her “no”s.
I don’t blame her for not wanting to go up to perfect strangers and ask them for money for a thing they don’t think they want. A polite “No thank you” is a very unlikely thing, and I’m not sure you’ve signed her up for self-defense classes yet.
Girls all know what rejection is, we don’t need training on how to hear it. We learn it in kindergarten. It’s boys that take for-freaking-evar to get it.
And I say this from a position of impeccable privilege, including the ability to lay out almost anyone who put hands where I didn’t want them in college. Looking for a job in an accepted job-location is just safer. Respect her boundaries, at least she should be able to expect that from her parents.