This has been my experience. My wife and I are both trans, and younger people tend to take it in stride. Caveat: We are in the Pacific Northwest, in a large city, and that makes a difference.
I find when you get to baby boomer age, it’s like shrodinger’s bigot. You don’t know if they are a bigot until they find out you are trans. I am FTM, and nobody ever knows I am trans until it comes up, and I have had the most liberal granola folks give me whiplash with how fast they turned, and the most conservative good 'ol boys shirt. You literally cannot tell how anyone is going to react based on political, religious, or racial lines.