There's a reason why "girlz" don't feel at home in flying schools. We get ignored, far too much of the time.
Gosh, you must come to the place where I did my PPL. While I cannot vouch for whether anyone talks to them, girl students are much fought over and quite a few end up pregnant
I suppose that being in a confined space (a C152 is as confined as I'd like to be) with a bloke in a smart uniform who will earn way more than the average teenager when he manages to unfreeze his fATPL has its attractions....
Macho attitudes are of course offputting to a lot of women too....
But seriously, yes, taking students up is a great idea, and the easiest to do. However bose-x is dead right - it will be frowned upon at the great majority of places.
There's no way forward I can see.
To bring in wealthier customers, one would have to start with a regulatory overhaul, FAA-style. Bring GPS in fully, abolish the silly slide rule.... Presently any of them that DO walk in will just quietly laugh. 20 years?