Every year, about 40,000 British families welcome an au pair -- a young person keen to improve their English and to travel who looks after children in exchange for lodging and some pocket-money.Every year, about 40,000 British familie... […] Brexit, Europe's Youth, Photos British families blame Brexit for au pair shortage Negotiations over Britain's EU withdrawal have started, and some British families are feeling the bite as the number of au pairs from Europe declines. 5 years ago