Indiana used to only have DST near Louisville and Chicago. Then Mitch Daniels ran a first failed campaign for governor on the "give Indiana DST" platform. When he ran again and was re-elected, he gave Indiana DST.
I was born and raised in Indiana, but I was living in California when it happened. It sucked that I had to move back and still deal with the DST I had to deal with in California.
Arizona only has a change of about 4 hours winter to summer vs Northern cities that lose 7 though. The big fight in the north is whether you leave for work in the dark, or leave to go home from work in the dark.
But I also lived in Arizona and DST is so damn terrible. But I'm on team year-round DST because I want after work daylight to get things done (vs Arizona which is year-round Standard Time.
Saskatchewan is fairly directly north of Arizona, in the sane time zone, doesn't do it either. Everyone in Saskatchewan is familiar with forcing foreign electronics onto Arizona time because the developers just looked at a world time zone map that neglected to note Saskatchewan, in addition to having no DST, is partially in the wrong tome zone. Western half is supposed to be on mountain time, eastern on central, same as BC is cut down the middle into mountain amd Pacific. So anyways my phone decided I was on central DST Sunday night and switched me to Manitoba time, I opened an hour early and was a little perturbed, it's cause Bell outsourced everything to Bombay.