Au pair work is a specific international scheme, with, I think, age and citizenship restrictions, and is designed to allow young people to experience life in another country while at the same time improving childcare provision. It has never been taxable, and in any case, the wage would fall below the tax threshold for a single person.
regarding age - 17 -27
I want to be an au pair only to improve my English.
You answered that :)
What a charming little ray of sunshine you sound.
You were a khunt to her without actually knowing what the full details were - btw - you can't blame families in this country for wanting au pairs, what's the option getting ripped off to the tune £1,500 a month for sending 2 kids to private nursery!
Edited - one of my friends was paying £1,200 another £1,500 per month