Dave, to answer your question, yes, I had Bayonet Training at Sand Hill, Ft Benning, Georgia, and Advanced Infantry Training (AIT) in Germany, as well as
"engagement" in SE Asia in '66-'67 with both the M14 and M16.
There's no doubt in my mind that I could still use a bayonet more physically proficient than most (even at my age), as well as being "mentally" prepared for such contact.
Didn't mean to get off topic, I'm just answering your question.
If somebody wants a bayonet on their HD weapon, I say go for it.
Staring at a barrel is intimidating, but not as scary as staring at a 10" blade in your face!