Like everything else, it's good to have diversity. Like you say, it is too socially and possibly legally costly to discuss openly other arrangements. The pressures need to relax to allow other lifestyles blossom.

It's not about being able to talk about it on the Internet or with friends. Imagine the hacker who has a business and unusual lifestyle. Can she be open with it without fear of judgment from investors and the community? I like to think she can, but I'm not so sure. Even if so, does that hold on a more general level?