There are a number of possible reasons: 1. A single person likes to have guests stay over and wants to offer them a room and also have a home office for workin

There are a number of possible reasons: 1. A single person likes to have guests stay over and wants to offer them a room and also have a home office for working from home 2. There are no "starter" homes available in their area. This is what my spouse and I hit in Los Angeles. We tried a condo and ended up suing the person who sold it to us because it was so noisy as to be unlivable. (And it turns out most of the condos in the area are like that.) But there were no small homes available on the market to purchase. When one did show up, they were usually purchased immediately for cash for more than asking price, torn down, and a new home built lot-line to lot-line put in its place and sold for 3x the cost. Eventually, I got some bonuses that allowed us to purchase a larger home so we did that. Now we have a guest room and an office which has worked out great during the pandemic. I'm really glad we did it.