If you cut your lawn to ultra short levels and put fuckloads of pesticides on it, then chances are you arent actually USING your lawn anyways. If you actually use your lawn you know its way nicer to have a little wild growth with flowers and shit going on.
Just pre-treat your clothes with permethrin, and spray some lemon-eucalyptus oil on exposed skin, and you'll be fine. Or you can use picaridin. Really. (A single treatment of permethrin will last about 6 washes. Treat outerwear and socks only, not gloves, hats, underwear, or balaclavas. But DO NOT expose cats to wet permethrin; it is highly toxic to them. They should be fine with treated clothing though.)
We have some fescue mixed with invasive Bermuda grass. You can't stop the Bermuda grass. It gets into everything. I fought it for years but finally just gave up.