I don't think so, because that's not a consequence of age. 100 year old men can sire children on their deathbeds. I think it was just one of those things men say, trying to be polite. He's got wrinkles and hair loss and probably his share of stomach and bowel problems.
This. Oona Chaplin's (Talisa) grandfather, Charlie was siring children in his seventies. Also look at Walder Frey. The man is swimming in heirs who appear to range the gamut in age. He has a 15-year-old wife and appeared to have no trouble with his libido.
Edited by Luciaphile, Jun 2, 2013 @ 7:06 AM.