I'm 20 years and still have $29k left of $54k. All from grad school (Master's and Ph D in a city where the stipend wasn't enough, and some bad decisions to not live with roomates for a few years etc.).
I don't really mind as I consolidated (FedLoan) at 3% and the minimum payment is $265. I send $300 a month lately, did $350 before wedding and then home purchase savings. Will up it again once I get the rainy day fund back up to 6 months expenses. Little set back there from needing surgery and having to give up my summer class taking some money out of my pocket (about $5k after taxes).
We make good money, so they payment isn't any kind of burden. My wife has way more student loans and a higher payment and higher interest as she finished years later than I did. But she makes the payments easily, but definitely feels it more than I do (we keep our finances completely separate).