"Those that are saying they would be quite happy to leave their children outside the cubicle, would you also leave your child/ren outside a shop? Because both are equally the same."
They are not the same - they are not the same in distance, not the same in terms of where the child is, not the same in terms of time spent away from the child, and not the same in terms of visibility.
This definition of 'unattended' was dealt with, I thought, further up the thread. i pointed out that when a baby is in their pushchair outside a toilet cubicle where I live, a) the wheels of the pushchair are still visible, b) they are at the end of a long corridor of cubicles and no-one can come past, and can be heard from a distance when they do, c) they are usually close enough to wrap one foot around the pushchair wheel while I am on the toilet, d) the door is unlatched (the puschair is used to form both a physical and visual barrier across the door) and e) the time when the baby itself is not visible is probably 30 seconds.
I was then told 'no, that's not leaving them unattended' ... in which case, what is the argument about? That is the definition of 'unattended' relevant if someone leaves their baby (a child capable of standing can be in the toilet with you) while they use the toilet - so if that definition of unattended isn't a problem, then there isn't a problem per se.
Ouside a shop - your child is further away, in a public street, for longer, you can't touch the pushchair and may well not be able to see it, you cannot hear people approach: completely different situation. Even more ludicrous are those who make comparisons to the McCann fam ily ... in a restaurant far away from an apartment, for a long period of time, no wway of seeing, hearing or touching the bed the child is in...again, completely different. risk assessment has to take those differences into account.