As one of the Elderly ladies

May I say.
There is often more fear in you than there is in your friend. Remember they like you and appreciate you as a friend. If you have a problem, true friends want to help you. If the 'problem' turns out to be life, sexuality or gender ID it's still the same. They as friends want to be part of you. If they don't they were never a friend.
By they way I found most of the general public don't give a damn. Work is the only place that can be difficult depending again on the atmosphere and the particular job you are in. As a Mtf (hate that) I hear comments like 'look at her' or 'look at this one' when I'm out. I felt a bit upset until one of my GG friends said, get used to it Cindy, in heels you are close to being a six foot brunette with a figure to die for. You will always get comments and you will hear them; unless you want to cross examine every person who makes a comment, accept them as compliments. I have and it feels really nice.
Having a friend who is facing the same stuff is invaluable, even if it is from a different angle.
Cindy