It's a valid question, but the people asking it never seem to understand why social media is damaging for young people. They never seem to understand that designers are literally taking cues from the gambling industry to create addictive apps and algorithms, or that the brains of teenagers are still developing and are therefore much more vulnerable than an adult's. It's not just a moral panic about porn or cyber-bullying or kids doing something new their parents don't understand and it's not hypocritical for parents to want their children off social media while continuing to use it themselves. I think once you understand the technological aspect then it becomes clear that there is a problem here that needs addressing.