Couldn't agree more - I'm sure you've come across Permaculture - put the effort in to convert that waste of space lawn to a productive polyculture which produces high economic value crops (which will be fruit and greens) which are low maintenance and you save yourself a shed load of time and money in the long run.
It's worth thinking about the effort-money ratio - you'll probably find that most soft fruit (blueberries) and especially spinach and rocket are so easy to grow yet cost a fortune, focus on those, whereas root veg and squash are a waste of time - they're just too cheap to GYO.
You should check out the 'growing your greens' series on YouTube, very enthusiastic guy who converted his whole yard to 'growing greens'.
Nice to know that you post about the 'real world' rather than just about 'Steemit'.
I'd also recommend getting out and getting involved with a bunch of people in yer local community - do yer lawn over in a weekend, it'll get you out of your editing studio for a couple of days!