We recently started having spontaneous dance parties in our house before bedtime where we blast music and everyone dances around the house. Or even just spontaneously deciding to have a pizza and movie night and let the kids stay up later than usual makes things fun. People certainly aren’t having kids for actively moral reasons. But is it immoral? You decide that some people are gonna exist. You can affect their quality of life but ultimately you can’t control it. My parents weren’t expecting me 25 years ago, I know that much. Also, most families have both parents working this is especially true for large families.
It is not fair to keep on popping out children with the expectation that the older ones will help out. Children should be able to BE children when they are young. They shouldn’t have to take on adult responsibilities like child-rearing unless they make that decision themselves one day. The effects of delegating child-rearing to the older kids are nearly always negative, in my experience. Many of the people I meet who came from large families want absolutely nothing to do with children once they are adults because they spent their entire childhoods taking care of a gaggle of other siblings.