Earlier quoted context omitted.
But then you'd need to include things that they have that we don't. The cost of activities for children has skyrocketed beyond belief compared to 40 years ago.
Wasn't the primary activity for children 40 years ago "go play in the street with your friends"? Has that become any more expensive?
But if you're talking about any sort of instruction I'd say the prices have tripled. If you're talking about something like organized hockey? Prices are astronomical.