Popcorn

As I have had kids I have started wondering what is genetic and what is just part of their gene build up.  The whole nurture vs nature kind of thing.   My children's love for popcorn is a prime example of that. Is it something we have done or is it in their gene build up?  Kyle and his family love popcorn.  I like popcorn but I feel like not quite to the degree that his family does.  His older brother Cameron used to go to a movie theater, buy a tub of popcorn and walk out.  Bode has joined right in with them.  He's gotten to the point now that if he doesn't have his very own bowl to eat out of he cries.  So is it in their genetic build up or is it something that we have thought them?  Who knows.  I just know that my kids love popcorn!