That's easy to say but anyone with a lawn is typically bound by local ordinances. I don't even live in a particularly nice area and I got a warning citation for some cool looking thistle I decided to let grow this year.
Of course check what is native. Where I live prairie is native. However if you live in woods you shouldn't be planting tall grass.
What the hell is this dystopia really.. oh American suburbs
..just the fact that anyone can say that phrase with a straight face...
(And like the sibling comment, also: where in UK? IIRC there's a whole 'no lawns' scene in the UK)