@bb those are dependant on funding & I think on the chopping block, but not sure. They also require that you make the payments for the first 10 years. Depending on how much you take out, might not be all that useful.
Probably if one makes enough that one can afford to pay student loans, then it seems only right to pay them. However, the concern I read was that teachers don’t make so much and that there was a concern about financing college and taking out loans, as a result.
In any case, as far as I have seen, teachers must make payments for the first 7-12 years (depending) and the payments are very low. Some teachers at my school have payments of only $5 per month and are close to being able to retire the remainder of their debts.
But I also heard that the current administration may be planning to dump the program. Unfortunate, if true. 
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I don’t know why they would want to further upset the teachers, though. My goodness. There is a teacher shortage as it is! Man, I hope they vote for someone else next time! My goodness!
In any case, there are other loan-forgiveness options, so if being a teacher is really in her heart and any of those options were at all interesting to her, if it were my kid I would encourage her to go to the school she would be happiest at and to pursue her best life, even if it meant taking loans, as long as she has an interest in needs folding a loan forgiveness option into her 6-year plan.