Sorry- I wasn't close to being clear enough- I live in Iowa, which is why I can get away with the grasses I mentioned and also why I mentioned I couldn't imagine dealing with the c4 southern grasses(if I lived in an area that required them).
I understand they aren't(for the most part) an option across MS and the surrounding East/West states.
My original post was basically meant to be- 'wow I am glad I don't have to deal with that based on where I live because it sounds like a hassle'.
Between the invasiveness, the thinning issues, the disease susceptibility, the insect infestation, the drought/dormant issues, etc- it seems that anyone with a well manicured lawn free of disease and insects is a true green thumb, especially if they don't apply chemicals. Speaking of- There have been more than a few threads on here about chems meant to help improve turf health killing lawns.
I had the pleasure of struggling big time in a turf class taught by Dr Goatley(shortly before he headed to VT). Wow that class was a mindblow- It was some upperlevel class that I was required to take, and it was all math/science based. A few buddies and I used to laugh at how unprepared and overwhelming it was since we were walking into something that everyone else had background knowledge of. But it was also an incredibly beneficial class- I learned about characteristics of all northern and southern grasses, how grasses work as plants, how to identify about 50 different turf weeds(using their latin names), and did a bunch of real world applied geometry and math.
Fantastic class- now that I am not in it and am years removed from going thru it.
That course gave me a serious appreciation for those who can manage turf on a large scale while minimizing chemicals. Incredible, really.