I've noticed my RB turkey poults this year being raised by their mothers are not nearly as human-interactive as the ones from the hatchery that I raised without a mother who did the roosting on the arm thing you're mentioning on this thread. These hatches seem to have more 'wildness' in them, and their mother always sends a warning chirp at them when humans approach that is teaching them to be more scared of us.
However, I'm 'training' my turkeys and am surprised at how intelligent they are. I can let mine in and out of their pens throughout the day to freerange and they're getting easy to handle that way. Two I am hand-raising will sit on my hand while I carry them from their brooder box out to there outside pen. It's quite cute actually.
My neighbor is also developing a relationship with our adult turkey tom. The tom sidles up to him, and my neighbor scratches his funny looking head. The tom seems to love it and just hangs around letting him do that, leaning into his scratching. It looks so funny! Other people are so scared of our tom, but he's such a peaceful fellow (other than chasing pickup trucks and bikes. He never hurts them, just runs alongside them like a crazy bird).