The best argument I've heard a few years ago for just staying in standard time is what I experienced today for the first time with a kid starting school; walking my kid to school in the dark would be a bummer in a couple weeks.

So yeah, we really should leave it alone, and I also prefer it be in standard time. Though, when we start and end things as a society should be tailored to the people anyway

teens, for instance, need 10 hours of sleep but tend to stay up later. They really should get a 10am start time just for them.