Issue is, these US-style lawns are often mandated in ways they disallow most other things, unless you want hefty fines.

I’m in Europe, and at least I can have little flowers within the grass, can plant any trees as long as they won’t damage any buildings or cables, and otherwise I can customize my own garden. I could even plant vegetables if the dogs didn’t stamp it, and wouldn’t be so cheap and readily available in the supermarket it doesn’t worth to look after them (once I did grew chili in pots since they’re more scarce in the supermarket).