Do you always make basements in your houses?

I don't build basements that often, they aren't very common in my country so I usually forget about them. Usually I only build them if there are more rooms I wanted to include in the house but didn't have enough space above ground or wouldn't fit the floorplan, or if it's a more secret room such as a vault in a mansion for example, or if I wanna make a fake underground garage. I usually include a laundry room in my builds, but they're usually located in the ground floor not the basement, since in my country they're usually in the ground floor near the kitchen or near the door leading to the backyard. I do build attics more often though, compared to basements.