You're still not really engaging with my point. A parent sitting next to their kid (without choosing specifically where they are sat) is to the benefit of everyone on the plane. You sitting where you want is to the benefit of you and you only. So it makes sense one has to be paid for and the other does not.
Again, 100% agree, parents sitting next to child should be a requirement. I agree that a child should not be sat away from their parent, because that is a bad time for everyone involved.
I just disagree that a child's seat should be allowed to be picked at random by the airline, forcing people to move who DID pick their seat. If an adult is booking a flight with a child, they should be required to book the child+parent seat even if that costs extra.
I believe all seats SHOULD be picked by passengers at the time of purchase, full stop. That was the way it had been as long as I had been flying, until they realized they could make more money by charging "seat selection" fees, now you have people who are the last to board because they got the cheapest seats who complain they aren't sitting with their travel partner. Which shouldn't be the problem of the airline or the passengers that picked their seat.
So you agree that a parent and child being sat together is beneficial for everyone but you want parents to bear that cost alone? Simple economics would tell us that results in parents not paying and more miserable passengers. Which isn't in anyone's interest.
Sometimes we're so focused on the concept of "fair" that we lose sight of the bigger picture.
