Agreed, and I'm in the boat. However those same people tend to have less disposable income and seem to be less apt to pay monthly fees or premiums for luxuries. When you think families think more bulk generic costco toilet paper and less "convenience fee" of any kind
While I agree there's an inevitable correlation there, since children are (reductionistically, financially) an expense and households that have an additional expense will be poorer than their equivalent household without that expense, I think you may still be overstating the poverty-inducing effects of children a wee bit.
I've been Single Income/Single, Dual Income No Kids (DINK), dual income with kids and single income with kids. Kids won't completely destroy your finances but 529 plans/day care alone can put a hurting on your finances.
You become much more financially responsible and less likely to pay for luxury services (for yourself) like HBO, Spotify, Netflix, Gym membership, high lease car payment etc after you have kids.
