It doesn't make you a bad person to be taking advantage of bad policies. But cities do need to incentivize sustainable living over unsustainable suburban sprawl.
[1] https://www.strongtowns.org/journal/2018/9/5/but-rich-people...
Sprawl is not unsustainable if you internalize the external costs, and I'll argue it'll get cheaper as mobility moves to electric vehicles and trucks, new infrastructure (with higher longevity) is built in new subdivisions instead of trying to replace 100+ year old gas, water, and sewer mains, etc.
@village-idiot: To your deleted comment, yes, my Teslas have a carbon impact during their manufacturing, but it is less than the SUV and pickup truck we used to own. It is very difficult to have no impact whatsoever on the Earth; optimize the best you can.
I also don't have any kids and won't be having them.
I happily bought my suburban home instead of living close to others in a condo or a townhouse.