It’s fine but you can’t really play sports or have a picnic or a barbecue or set up a slip n slide or many other fun activities that lawns are good for!

Also a dense jungle of food-bearing plants like tomatoes is highly susceptible to disease. Tomatoes need a lot of airflow to keep their leaves dry so they don’t develop powdery mildew.

Not if you eat it.

How high do you like stuff before you think you need to mow it? Real question.

oh no, ground cover that's more than half an inch is so scary

Here's one that tops out at 6 inches.

What kind of wimpy grass do you have? The stuff near me will grow over a foot if you let it