Question

Why do parents believe in harsh discipline

Answer 1

I don’t think all parents believe in harsh punishments. It depends on the parents, depends on their own upbringing, the social status, their culture and lots of factors. It is not true to say all parents believe in harsh discipline.
Also what to a child might seem harsh discipline will vary from child to child!

Answer 2

Because it helps the parents control their child when they are doing something that is causing some trouble. If your too soft and don’t believe in harsh discipline, your child will never take you seriously and think they can get away with things.