I may well be U... I only have experience with a couple of laundries in the UK as I rarely need to get it done commercially. The place in my town I used when our washer was awaiting repair would fold the clothes and put them back in the bags for life I'd brought them in.
I'm currently travelling for business for two weeks. I took some things to a laundry in Borehamwood on Friday to pick up Saturday morning. It was a small load and they charged £7.50, which seemed reasonable for the one-off convenience.
I was surprised to get it back just crammed into a plastic bag. It had clearly been stuffed into the bag while still hot. Everything was creased to the point of being pleated. The kind of creases that would be difficult to iron out, as they been set by the heat.
Also they used a strongly scented laundry detergent that has a cloying smell. That's just a matter of taste but it surprised me a bit. There are brands that don't emphasise scent and won't be so off putting.