Our house currently has 1 car, 0 kids, and a 1600 sq foot house, and has been that way for the past 5 years (we rented a condo for two years before that). This sounds like mostly a step up for me, especially the kids.

We haven't been able to justify having any kids yet still, and I'm nearly at the age where it starts becoming harder to have them (happens for guys in their mid 40s).

My parents had me and a house in their 20s. I just had shitty credit, student loans, and roommates.