I live in CO. This concern about the effects of legalization on the population are way over exaggerated. It has not affected my day to day life at all. I still get up and get dressed in the morning, go to work, come home, have dinner with my family. Nothing has changed other than we are not spending my tax dollars to enforce the unenforceable.
So your kids are grown?
Iran is about to get a nuclear weapon. We won't notice any problems with this at first.
How long do you think it takes for demographic trends to manifest themselves?