This is actually a thing already, and AirAsia charges $25 to $55 for the privilege: https://www.budgetair.com/en_us/blog/quiet-zones-vs-family-z...

I've been on international flights booked by my comoany, where I cannot change or upgrade anything - except my meal selection to say I need a special meal.

Airlines should def offer sections - party/drinkers, quiet, families, the rest come to mind.