My main concern regarding seeing someone so very young would be the payment. Even if the client had the ID to confirm that they were 16, where does someone that age get a spare ?150 from? (This is my minimum charge as I'm outcall only).
I would be concerned about getting a call from an angry parent after the booking stating that it was their money not the child's and that they want it back. I don't think someone of sixteen is likely to have earned / saved that amount of money independently of their parents, therefore I'd be extremely reluctant to take money from them.
Oh and not to mention 16 is less than half my age as well
I've received emails from individuals claiming to be 16 or 17 declaring that they have the money, that their money is as good as any other clients', will I see them? Who then go on to say that they want to pay a lot less than my usual rates, for an appointment length I don't offer, at a time when I am not available and can they fill the time with constant action from the moment I open the door.
I have also received texts from some sort of 'carer' threatening to report me to the authorities because I had taken advantage of a 'vulnerable' young adult (16-19 years old). I guess he'd gone home and boasted about having sex with an older woman. It would seem they had assumed I had lured this young man in. Luckily I did have the emails and texts he'd sent asking me explicitly for a booking and for sex. At the time I was also going through a confidence crisis and had allowed him to negotiate a discount.
So yes it is legal but that sort of hassle is something I can do without! On reflection there were warning signs and I could have responded to earlier warning signs that there was something not quite right. I have since then seen proof that the messages were almost definitely from someone who was in the position they claimed.