What an irresponsible advise, given that you factored out the importance of the relationship with the significant other.
"Just find the love of your life!"
"Just live happily ever after!"
I mean, you don't even care if someone's personality and mental state allows for that. A family is not a retinue waiting on you to fullfil your every need, is it?
If starting a family was a silver bullet then we wouldn't see such a high rate of divorce and so many kids screwed up because their parents divorce sucked.
Personally I'm doing very well, but this line of argument sounds an awful lot like "letting them eat cake".
I mean, the assumption alone that people never thought of something like starting a family is mind-boggingly idiotic and presumptuous, as it assumed everyone around is just a mindless NPC.