The case against permanent daylight time always arrives dressed as science, then quickly becomes a complaint about children waiting for the school bus in the dark. We already bend the tax code, workday, public calendar, and most public space around raising children. Parents now want civil time to preserve their preferred sunlight too, while everyone else loses the only usable winter daylight to the commute home.
An hour of light at 4:30 p.m. can be used by almost everyone. At 7:30 a.m. it is mostly burned inside a car, office, or classroom. If dark school mornings are unsafe, start school later—a change sleep researchers have wanted for years—instead of making the entire population spend winter evenings in the dark. Parents are entitled to many lifestyle subsidies. They are not entitled to own the sun.