I know it's parents in a lot of facilities, and I'm sure it isnt exclusively parents too. I used to run an infant feeding group in a family centre so we would get people in multiples, lots of children, babies, toddlers and yes it is definitely parents in those settings. I've had to do a lot of gentle reminding, and putting up signage. Been told but it might catch on pram wheels, that their little one likes to grab things, that they make them too interesting by making them red. You name it, I've heard it.
I've also been shopping with my friend and her 3 kids and she's come out of the disabled toilets saying how it's fucking stupid that they leave the alert cables around for kids to grab a hold of, and I've had to tell her she's completely missed the point of accessibility and gone in after her and unwound it.
Before that I worked in a shopping centre and found the same sorts of attitudes, and I think a general ignorance that not many people understand WHY the cable is long, red, and in an easily grabbable place. Except in shopping centres the general toilets are usually placed next to the disabled so you don't get as many people using those facilities because they're lazy, but usually because they're disabled, have children and babies or both. Especially in our corner of the centre because in a rather inaccessible architectural way, the disabled facilities were the last down the corridor. Whoever designed those toilets didn't really think about those with mobility issues at all.
And lord knows if you've ever been to the disabled toilets in a mcdonalds it's like someone's tried to play cats cradle, every single time.
So yeah I was probably being a bit hyperbolic, I'm not saying it's just parents but there are a lot of parents out there that feel their temporary comfort outweighs the genuine safeguarding needs of disabled people in these shared facilities.