Because, Tanith, you said that the so-called 'professional' babysitters are employed because they want reassurance that their child will be looked after properly. But then a couple of posts down we've got the admission, from a self-styled 'professional' babysitter that she spends her £12 an hour time drinking wine, falling asleep and bitching about the paucity of snacks on offer.
I'm not a professional 'babysitter' I'm a professional nanny that occasionally babysits. I have been for 30 years. I am very good at my job. If someone asks me to babysit at the weekend, after my 62.5+ hours of work and offers me a glass of wine, why not? I don't get drunk. If they don't come home until 2am, then yes I will nap on the sofa, with the monitor right next to me, I've had many children overnight, I don't sleep properly if I am in charge, I hear virtually every sound they make, I'm not pissed out of my head, fast asleep on their sofa.
Thankfully, the families I do babysit for realise that I'm giving up my time to help them out, that my time is worth something and they treat me as a friend who cares about their children and will do my best to care for them.
And for these people who respect me, I sometimes do it for free (or cuddles with their snugly baby)