Without anymore context, I'll assume that he's referring to a logic lacking covid curfew in the US. Those might make sense for dense downtown districts with bars, but almost nowhere else
In Germany, we have a curfew in place after 21:00 in the evening (with exceptions to go to work, visit doctors/veterinarians and other immediate needs). The goal was not to prevent people from going to bars since these are closed/take away for months now anyway, but rather to discourage people from visiting friends.