Can "old people" to learn to fly gliders?

Sure, a lot "senior citizens" fly gliders. But how many of them soloed at 55?

It's apparently much easier to learn to fly at 16, but a new student aged 55 is more likely to have the time and funds to commit to the sport and stay with it. That late middle aged guy/gal is more likely to step into the shoes of the winnowed ranks of the even older guys/gals that presently sustain the sport. A 50-something who is prepared to retire is more likely to step up to fill the ranks than an underemployed 20-something who is struggling to get established in career, family, and community during a prolonged recession and uncertain economy.

But my question is this, can an "old person" learn to fly and does the soaring community have the patience to teach them? Are there special challenges to developing an older student and how well are those challenges addressed?