We’re reaching further into the past than great great grandparents to get to the large families for farming but sure. Calling it a “fine” to have kids is really bizarre framing though.
The USA didn't change things up considerably until the 1930s: https://en.wikipedia.org/wiki/Child_labor_in_the_United_Stat...
Not soon after, obviously ww2 and then the baby boom after that. The role of children in families changed hugely in the 20th century.
https://populationeducation.org/wp-content/uploads/2020/04/a...