Here is some very relevant data that should help everyone, including yourself, regarding this
issue...(see link)...and here is a key observation from that report...
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The youngest patient undergoing gender-affirming surgery in the sample was age 14 at the time of mastectomy and the oldest patient was 76 at the time of vaginoplasty.
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Much of your concern involves ages for diagnosis of GID, rather than actual surgeries...and you fail to account for the process involved before surgery, which by no means is chosen by all GID patients...(see link below)...
https://www.webmd.com/sex/news/20150422/transgender-homomes-surgery
Hope this makes you feel better, or at least lowers your BP a bit.
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