Surprised I got down-voted. It's kind of naive. Many programmers that have families prefer to go to work instead. Working at home, as a non-bachelor, you're seen as being able to take care of all the domestic issues (dishes, trash, run errands) and many people would just rather strike that balance. Sure, a lot of people like it but I don't think it's going to be that common. Even our industry, supposedly the most forward thinking, and even in SV, many require working on-premise. If working from home is too liberal for SV, it's going to be too much for the rest of the country for much longer than 20 years.