Age typically is not a problem. If you are having an erection problem check with your medical doctor first . There are a couple of good reasons why you may be having difficulty getting an erection. On the extreme edge , you may be with or have been with, what I call a castrating female. She belittles you and demands you perform more, better or differently.
Guilt is an erection killer .
Very often guys will have a problem getting an erection when out with someone other than their wife. When they get home and attempt to make love with the wife, guilt over their affair overcomes them and their penis fails them. Face it guys sometimes sex is not as exciting as you thought it might be and you lose interest . If you lost interest or maybe just didn't feel like having sex, you may lose your erection or not even get one. Sometimes a fright, like her boyfriend walking in , causes you to lose the erection.