I don’t think that is a big part of it because their decisions to take the loans would have happened 3-10 years ago. I don’t think there has been a big drop off in loan repayment in the last 2 years since all the ‘forgive all loans’ talk has started.
My own kids are not allowed to believe this forgiveness talk. One is an engineer and has no trouble paying her loan (about $200/mo). The other is a minimum wage worker but has to make her payments ($225 for one, $40 for another). I haven’t even encouraged her to get on an IBR schedule as I just think she needs to dig in and pay.