Au-Pairs must be given the opportunity to participate in a language course in their host country, however, should have some basic language skills beforehand.
Whether it is the Au-Pair or the host family who pays for the language course depends on the prevailing practice of the relevant host country. Normally, the Au-Pairs pay for their courses by themselves. Should they wish to do so, host families may of course support their Au-Pairs financially with these expenses. In certain countries, however, it is compulsory for host families to pay for the language course of their Au-Pair.