Imagine apartments built into what used to be department stores, (Oh, you’re JC Penny 203? I’m at Sears 106). Get those old arcades up and running. Set up meal stations at the food court. Once people actually live there, stores will start to move back in.
If I’m unable to finish my life in my own home, that doesn’t sound like a terrible option.
I’ve seen some concepts for mall-like communities based around retirement homes and elementary schools. Add a library, some shops, and other services, and you’re off to a great start.
The old-but-still-able folks can serve as crossing guards, read books to kids, play games with them, perhaps help with coaching or other tasks, etc… The young kids benefit from the wisdom and time spent with good role models, the retirees get much-needed social interaction, structure, and purpose.
A man can dream.