This is my reply about Handicap plates on a motorcycle.
Why should you be scared, I have them on my Venture. I have a degenerative disk problem with my back and I ride every chance I get so it helps me to be able to ride and still enjoy it when I am able. Also when I am riding, I have no problem, when I stop and park if often becomes a different matter. It comes in handy when some idiot is not parking in a handicap zone and I do not have to walk as far as I would otherwise. Yes, I also have to use a cane that is tied down to my luggage rack with Velcro.