Interviewing anyone?

So, just had a thought, and I sort of need help in developing if any of you could help out. I would really like to interview a couple of people from each generation alive today, maybe in 30-year increments to hear what they have to say about different people groups, and whether they play into a lot of the stereotypes about the different groups. A sample question posed would be:

If you were walking down the street and you saw a Kikuyu man, a Luo man, a Maasai, and a Taita, around which one would you hold your purse/satchel tightest?
This of course is a question I would pose to someone who has grown up in Kenya. The general view of the Kikuyu tribe is that they are the most likely to be thieves.

This is a half-developed idea, and would require a lot of fore-planning, so I'd like to hear opinions on how realistic it would be for me to participate in such a thing. There is a retirement home nearby at which I was planning on volunteering some of my time this semester and I would be able to ask the people there their views on different races. I tutor at a school on 4th street and could ask the teachers to allow me to ask the children questions as well. Then, I could go around south bethlehem ( i know a couple of people who have lived here a while) and ask people their opinion.

So, what do you think?