Unless you're an idiot and want to pay 50 bucks for one singular ppv there's absolutely no reason not to subscribe to this. Why would parents be upset? For a 120 bucks a year their kid can see every pay per view. You'd spend that in 3/4 months if you paid for each PPV right now.
To add: Not only is this a game changer but this basically destroyed UFC's "Fight Pass" service. Which costs 900 bucks a year to WWEs 120. I guarantee you Dana White took notice of this. McMahon knows ppvs, White himself said he invented it basically, so you will have him to thank when UFC is offering their ppvs for 10 bucks a month.