We have a mix of elderly and families with young children in my neighborhood. Having affordable lawn care companies helps us tremendously.
but....
If we are ever going to see great alternatives to lawns develop, I wouldn't be surprised if it is going to be in part done by good-quality landscaping firms. Team up with a permaculturist and start making a bigger difference.
I agree with you in that I wouldn't find my own personal lawn satisfying, but lawns are not nearly the worst option. Humans need outdoor space - the lawn also benefits people passing by.
I'm in favour of open, green spaces for people to play or relax, but that doesn't happen on lawns; public parks (at least as implemented here in Europe) offer much more chance for everyone to enjoy, and socially rather than on their own.