Is it normal for an adult man to still have 'random' erections?!

Is it normal for an adult man to still have 'random' erections?

I know it's normal for guys going through puberty to get erections when they least want it, but I'm wondering if it's normal for a guy my age. I'm 21 years old, and I still get these 'random' erections in the middle of the day. I'll be sitting there, and there it goes, and I wasn't even thinking of anything arousing. I just sometimes happens. Is this normal?

Yeah it's normal. Plus you're only 21 which is still young. Males don't fully stop developing (body and brain) until they're about 22. You should start to get less and less of the spontaneous erections though. But just be glad that it's not the other way around.

B