This still happen at daycare. If you have sent your kid to daycare/preschool, you'll know that kids become friends wit nother kids there, and parents can become friends withnother parents. A community forms because playdates are necessary when daycare/preschool is out.
> parents
Sometimes economic realities are such that both parents have to work to make ends meet. There are single-family households that also exist. Childcare is a necessity in these and other situations.
No one does because everyone needs to have a job to survive in the US today. It used to be that many couples could survive on a single income. Not only did that allow them to better care for their kids, it also allowed them to help their siblings, parents, other family members, friends, neighbors, and community.
> It used to be that many couples could survive on a single income
Historically, this is not true - women have always taken in work. Living on someone else's dime was for the wealthy only. The post-war years were a historical anomaly.
