Hi Dee,
Always nice to hear from you, and good for you on losing all that scruffiness!
On telling your children I would never ask them if they’re okay with it. In some ways their opinions don’t matter. You are what you are.
I told my two sons individually, which I think worked well. I told them how I had determined that I am trans, and what it means. When they asked what I was going to do (this was about one year before starting any transition) I was honest: I didn’t know.
I told them that I planned to continue to explore, figure out and determine my authentic self.
One of my sons was very interested. I forwarded articles and YouTube vids to him.
My other son didn’t care much at all.’
I suggest that you write out what you want to say before meeting with any of them.’ Maybe rehearse beforehand so you’ll remember it.
And then, go forward. My son told me that i was inspiring to have come to my determination and, later, as I transitioned.