You don't have to be old to be wise. I don't write off your opinion because you're a grumpy old man, I'd like if you did the same for me.
I can give two ****s about someone's opinion on vaccination, there is only one right answer

. There are obviously a couple of immune disorder exceptions (which are honestly more about the needle than the juice), but I don't assume that everyone is a member of a tiny demographic of the country.