Just to clarify, the site I was mentioning has 37 languages from which to choose including Hindi, Arabic, Hawaiian. Esperanto, Navajo, Klingon and High Valyrian AND one can select what base language to use. So, if the tutor is learning Gaelic Scottish for example he could indicate that he is an English speaking person. Don't laugh, some people do this.
One of the positive as well as negative things about the site is that it has gamified language learning. There are points, leagues, and rewards. If someone wants to maintain their status they could very well use their native language to ea