I can imagine the raspberry ants in Houston might be a problem too.
When I was little we had our washer and dryer in the usual place in our house, but when we were reverse white flight in the late 70's we had them on top of the tub in the maids bathroom of the apartment we rented. When my parents bought a place, we had it in the jerry-rigged setup in the pantry (should see if I have pictures) - the water lines were scabbed off the back bathroom sink (NO shutoffs for anything), through a hole in the wall into the pantry. The drain was scabbed into the pipe between the toilet tank and bowl which mean the toilet flushed when the washer drained. This was done by the previous owner, along with insane wiring (two loose wires for the fridge, etc, "workshop" in the coat closet). NEVER in 25 years did we have a leak and then my folks redid the kitchen and did it right, hooking into the old ice box drainpipe. Everybody else in the building had individual machines (some people shared dryers) in the communal laundry room (not uncommon in Chicago - my current laundry room used to have several machines, now we just have two with a schedule, you can sign up for vacant or have a permanent time).
I have a friend in Spain who says most houses in his area have the washers in the patio behind the house since it never freezes.
In Sweden most people in houses have a laundry or utility room (a lot of people just use their sauna for drying, especially in the far north where almost every house has one - Finnish influence, or have a drying room with the boiler room, especially 60's houses with oil heat), even many apartments have a laundry room, but more likely, it'll be in the bathroom, the tumble dryer on top of the washer. I remember a lot of Cylinda's around 1990. Most apartment buildings/complexes will have a big laundry room (the tvättstuga, aka laundry cabin) which will have big machines for rugs, etc. There used to be a phone system where you'd call up on your phone to reserve washers, a red light would light up on the washing machines indicating you have "booked" them. Or people just had a schedule, i.e. the Jonssons have it on Tuesday, the Svenssons on Wednesday and so on.
My parents lived in Norway for a bit and had a machine in the bathroom, but their second apartment had a laundry in the basement with a massive electric (EVERYTHING is electric in Norway, cooking, hot water, heat, except cars) drying rack system which you pulled out of the wall and could hang sheets in to dry. I think you could do a month's worth of laundry in that. I think there was a wringer/press for sheets and table linens too. Their upstairs neighbor was from Sweden and put a machine in her apartment, it was the talk of the building!