One of my children will probably study a European Language for their degree so from a position of self-interest this is appealing.
However, freedom of movement moves in both directions and was a primary driver in the referendum result. I strongly believe that the referendum was an unexpected win for the Leave side because of the especially high numbers of immigrants, particularly young men, into Europe over the previous year. IIRC, Germany accepted a million in the year prior to the referendum - apologies if number is wrong - embarrassing if I'm wildly out. Once allowed to live in Germany, they were also allowed to live in the UK because of freedom of movement. I think this really influence the referendum result.
I'm a remainer but accept the decision of the referendum. This seems like a back door way to bring some of the EU agreement back so could stir up a whole lot of trouble again. I'd be interested to know why it's being offered now. And also pleased if it went through that it is young people, who were mostly remainers, who would benefit most.