I think anyone with a known medical issue could benefit.

It is of course a personal choice and one that I'm on the positive side for .
I wear one and I am quite comfortable with basics on it. Even the medical insignia itself would perhaps be a benefit.

I would like to hear how other's see it.

I think wearing a bracelet that lets emergency people know you have PD is a good idea. My daughter gave me one a year ago and I am thankful she did. If you were in an accident and was unconscious or couldn't talk letting medical people know might save your life.