It depends where you are in the country or your position east or west within your timezone.
For example, I am in NH. I do not care if it is light at 5:30 AM. I would rather have it light later into the evening. Which is why I prefer DST. People in down east Maine probably agree with me even more.
However, in MI it does not get light until 8am. It stays light until after 10pm in the summer. They MAY want it to be more light in the morning.
I have been in Boise in early July when I had to close the curtains because it was light until 10:30 pm.
SO, MY solution is to SPLIT the difference 1/2 hour and stay on that all year long for the entire country.
Nope, leave it up to the individual states. Maybe all of them will decide to do the half-hour thing, though I doubt it.