Jen, erectile dysfunction can be due to a number of factors. Age might be one of them as it can increase the older someone gets simply because their testosterone has started to drop. It can, of course, be due to any other number of factors... too much booze, emotional problems, etc. As to whether it is the result of tucking damage there is a lot of soft tissue and capillaries in the penis so it might be possible especially if the tucking has been overly tight. If you are concerned you really should talk to a doctor rather than consult with the internet, we can only give you general pointers not medical advice.
I will also make a point to younger members to not jump to age as a cause of a problem in every instance where an older person is concerned, that is misguided advice.