Why do some guys have a hard time staying hard?

Are they gay? Because I can stay hard for hours on end, and I never had a problem. And my coworkers who are younger than me tell me that they take these pills to stay hard.

Updates
+1 y
Like I see all these blue chew ads, and it’s so popular. Like you have a bigger problem if you need pills to have sex. Like what are you? In your 80s?
Why do some guys have a hard time staying hard?
Post Opinion