This is why consent culture is so creepy. Convincing children they've consented to something is so easy that to spare kids from horrible situations, we literally just don't let that consent mean anything at all.
Most of the time the parents who say "oh, we don't do anything, even a diaper change, without the consent of our child" are crazy people who are planning on a lifetime of creepily manipulating children into saying they WANT to wear their car seat restraints and share their toys.
It's basically a reaction from the responsibility-avoidant, which is what the trans movement is by definition. As soon as your child is a "trans" child, you can abandon all attempts at real parenting, which sometimes sucks and requires you to be the bad guy to someone you love more than life.
Way too many parents in the current generation want their kids to worship them all the time, and will bribe them with anything imaginable to make sure the adoration the child had for them at age 2 lasts as long as possible. Last night, as my kids were trick-or-treating, I saw a chubby kid through a window who was easily 5-6 years old in a house, wearing a Pull-Up and nothing else, standing on a stepstool to watch a high-up TV with his sticky face touching the screen, while he was eating with a plastic spoon from a container of some kind of goop. He went to tell his mom there were trick or treaters, then stood at the fridge with the door open looking for more food.
I see it all the time now. Kids who haven't been told, ok, guess what, we're going to potty train. No, you can't stand on a stepstool and touch the TV with your face, disgusting, and we don't just stand around in the living room eating whatever snacks we want. I'm sure his mom would tell me he has "special needs" and just can't do any of that, but "special needs" seems like it's often code for "zero effort parenting."
Trans parenting is same shit, different day. Don't like telling your kid to change clothes when they look ridiculous? Or deciding on clothes for them? Do you still feel weird mommy guilt over choosing your child's name instead of them being able to choose their own? Want to let your kid set the agenda on your entire parenting future, while other parents are forced to admire you because any other choice would reveal their transphobic bigotry? Ask your doctor if a lifetime of broken bones and sterility is right for your child!