Correct. Even big chain hotels that always have laundry in the US
don’t have them in Europe. I’ve been to one hotel in Europe that had
laundry. It was one machine - a combo washer/dryer that took over 4
hours and could fit about 3 pairs of pants per load.
Yes. If you are doing laundry for a family of 4 carry-on's worth, a laundromat with large machines that can handle it all in one load is worth it. But if you are a solo traveler with 1 carry-on's worth of clothes, 1 small load may be more practical.
And figuring in whether what you take can be washed/dried together or must be separated lights/darks is also a consideration.
Family of 4 where you can load several machines at once vs. Solo and the only small machine in the hotel is occupied and you have 2 loads to do for lights/darks.
I've been testing my color-grabber sheets for known bleeders with some white cotton socks. So far, the color-grabbers work.