I'd like to talk to your parents
Currently interviewing folks over the age of 55 (Boomers) to better understand their consumer needs and interests. If you have a parent that's interested, we'd offer them a Chipotle/Starbucks gift card for their participation!
I know you didn't ask for unsolicited advice but here it is - I think you should be more specific with regards to what your end goal is. What sort of "needs and interests" are you trying to understand? Financial? Social? Political? Asking people to do a survey (or forward to their parents) without a clear direction isn't going to motivate a lot of people - case in point, both of my parents are above 55 but I wouldn't forward your survey to them as I have no idea what its about. The incentive is a good start, but not compelling enough of a reason.
If you really just wanted a general chat then start making friends with older people and get to know them.
Just my 2 cents in case you haven't had many takers yet. If you have, then I guess you can disregard this comment lol.