Growing up in the Midwest people don't drive Porsches and Ferraris. They drive Fords and Chevys. And so even if you have the opportunity to buy a more expensive car it doesn't occur to you because it's not what you relate to.
I can count all the ways in which being a mother has enriched my understanding of the world of character my sense of the future and my attachment to it. I can't imagine what kind of writer I'd be if I didn't have my kids.