What the red fella said...
Me, my lovely wife quit work while pregos and went back (casual) when he finished school, one child. During that time we paid the house off. I've been married 36 years and bought our 4th car a year or so ago, still have the 3rd. First time two cars, we used to drop each other off and same pick up. Same house 27 years and we are only now catching up on maintenance. I don't give a crap about missing out on stuff because we didn't, always someone home when son finished school and we love our camping & bbq's with friends etc. Now days everyone needs 2 cars, 3 TV's, 2 bathrooms, family and games rooms, swimming pools, mobs of air cons, regular take away, meals out, holidays away and if you don't get it you're so bloody hard done by.
Just my thoughts, yes we only had one child and later in life, but seriously it's about choices

I know some people are seriously on struggle street and need two wages coming in, I feel for them but some others do need to have a good look at the big picture. And going by Panda's figure I'm on an average wage.