I think this is actually referring back to the rule in China about one child per family, due to their population boom. Taking this into consideration and seeing more than a single child per household (if they have children), this might be a natural thought process. I may be wrong, but that's my thought process behind this.
There were usually multiple kids in an American family, and Xie Yujia's parents' neighbor had four kids.
Urban · Dragon King's Nice Son-In-Law
PSA: Don't surprise people who are chopping. It leads to injuries. lol
A smirk appeared on his face as he sneaked closer and embraced Ayesha from behind.
I have a Mansion in the Post-apocalyptic World
Sci-fi · Morning Star LL