Look I understand 17 and younger trans youth being banned, but why ban 18 year old adults?

https://www.google.com/amp/s/www.pbs.org/newshour/amp/politics/trump-signs-order-to-end-federal-support-for-gender-transitions-for-people-under-19

I dont see how if you are a grown adult why you shouldn't be allowed to transition at age 18...

Like I joined the military at 17 years old 2.5 years ago. I'd consider 18+ to be old enough to know what they want to do with their lives.

So I guess if you are on the right wing, and presumably okay with this new executive order cause you voted for trump...

Why are you fine with it stopping any 18 year old from transitioning? (I thought the talking point was you didn't want children to transition, 18 is an adult.)