I feel that we are currently living in a world that is similar to late '50s, early '60s kind of world.
First, Darwinian theory tells us how a certain amount of diversity in life forms can develop once we have various types of complex living organisms already in existence.
I was able to be more reckless and now I still make mistakes, but having kids, you have a responsibility and these little people who are looking up to you for everything.