text: It tends to be once they are secure in themselves.  People can also want to do this because they are NOT secure.  If that makes sense....Men tend to be the first option (waiting tl they're secure in themselves) and women tend to be the latter.  In case you're wondering I am a woman, ready to settle down because I want stability (I'm only 21 but I know what I want).  It also depends on the maturity of th individual, I would imagine.