You already answered your question..... "I don't think I'm really comfortable with this"
I also pick up that if you accept the freebie dinner, then you feel you could be setting yourself up for obligation.
If you are not strong enough to be able to say no thank you when you need to then don't engage in conversations where you might be put on a spot that might end up with you being obligated.
I don't think the earning potential is there unless you are a super salesperson who can get people to donate lots of money...
It is not easy getting sponsorships. I did it 4 yrs through high school cheer fundraising and football booster fundraising with my daughter and each year, you go back to the people who donated before and try to get more money. It's a never ending cycle.
I have a proven track record of great sales experience, plus own my own company with sales up over 50% this year (non MLM or direct sales) and I HATE seeking sponsorships.
Best wishes whatever you choose. Congratulations on the good writing and being recognized!