Fresh Food Education

I don't have any grandchildren myself, but I get to share my sister's, which is just as good I think.  One of the activities I like to try when I babysit, is testing them out in the vege garden, just to see if they like fresh peas and carrots, like I did as a kid.  Dad always grew veges, and we would eat anything he gave us, including white radishes.  I don't know if they taste different now, but I have never been able to get anyone to eat radishes.  Maybe modern palletes have changed.  Anyway, I haven't had much luck with peas either, even though standing in the garden eating fresh peas has been a treat for me my entire life.  I've had more luck with cherry tomatoes though.  With the modern trend of building large houses on small blocks with very little garden space, I wonder what effect it will have on the way people live.