Too old to learn snowboarding?
My dad is 65 years old and retiring at the end of 2012. He used to be a decent skier (blues + moguls), but hasn't gone out for a while due to knee surgery. Then, his eyes started shriveling on account of being old, which increased the risk of a retinal tear during high impact sports. He says the eye situation has stabilized and wants to go skiing this year. He also floated the possibility of learning snowboarding because it'd be easier on his old man knees, though I don't think he knows what he'd be getting into.
Is he too old to learn snowboarding? Everyone I know who learned snowboarding had a rough time physically, so I was wondering if it's advisable for him as well. He's not fragile - he still does a lot of yard work, swims and plays tennis regularly - but I'm afraid that the impact of repeated falls or catching an edge will mess him up somehow.