The problem of wet wipes in the sewage system is caused by ignorant adults, not children. People are now using disposable wipes for cleaning the kitchen and bathroom, and the floor. I'll bet many of those go down the loo along with all the baby wipes and bottom wipes. There are 67 million people in the UK and it only takes 1% of them to be doing this to cause serious problems.
Wipes are now being marketed as 'biodegradable' but they are not really. They don't break down into tiny fragments like toilet paper so will still be clogging up the pipes.
I'm afraid that 'single use' things are always wrong whatever they are, wipes, bottles, cotton buds, razors, the list is endless. Society has just become more and more lazy.