A huge fraction of the US workforce, spread throughout every industry, consists of parents. It sounds easy to say "let the parents start later", but it's a massive coordination problem. It makes more sense if you assume the whole workforce works the way it does for most of us on HN, but in most jobs, you actually have to show up on time; if you can't, someone else has to be scheduled to account for your missing hour.
The only way I think you can make DST abolition make sense is if you say "well, I guess kids are going to be at school in the dark at 9AM in a bunch of places around the country". That's a coherent argument! But "parents and workplaces will just figure it out" is, I think, not.
