We are all dependent on government in at least some ways. Unless you don't drive on public roads, don't send your kids to public schools, and don't use US Mail.
Here's a great opportunity for a little informal HN poll. When was the last time you used the postal service to send a letter? Sure, I've got a box that gets junk mail every day, but the only time I send anything are one-off bills where they don't have an option for on-line payments.
I post mail about twice a week.
So, if you're looking at .gov as a service provider, why give it a monopoly on providing those services if that makes its users dependent on it? Roads may be a little tricky, of course, but some services like US Mail could surely do with a few competitors to bring prices down and service up.
UPS and FedEx. They don't do individual letters, of course, but they compete with the US Mail on packages, and compete by offering better service, not on price.
It would be nice if we could have ... global understanding of public goods.