Traditions and mores are changing. Single buyer ownership is on the upswing. There are probably a number of good reasons that this segment of the real estate market is up. Some of them are mentioned in the attached article below.  I do not think the reasons are any different than traditional multiple buyers( Husband and wife). The rental market is tight and the prices are raising, it is still a good time to buy, there arew some good values to be had. And rel estate is a good investment wether you are married or not.

The obstacles are the same as any purchase of real estate. Single buyers may have different needs than traditional families, It is more important to identify those special need when looking for the right property.