I think so, but I meet many people who don't. As evidence, I point to examples such as toll roads and private charities. As further evidence, I saw this blog post over at Carpe Diem today about New York City's Central Park.
Perhaps the most amazing thing about Central Park is how little tax money goes into maintaining it. Though it is still ultimately the city’s responsibility, the park has been managed since the 1980s by the nonprofit Central Park Conservancy, and it relies on private donations for most of its budget.
In my best Johnny Carson voice, "I did not know that!" Click through to read the whole story. It's very interesting!