Just wondering do horse manes get thinner as they get older. My horse had quite a think mane which did grow even down towards the withers when he was younger. But now hes old he has a pathetic mane, which I cant get to grow near the withers and half way up. When I ruffle through and look at the skin it is pretty bald. He has been unrugged this summer so rug rubbing is not the cause. Just wondering if horses thin like people.