There are still many publicized cases of puberty blockers being given to young children (i.e. before 12 years of age). At least in some places in the US it most definitely does not require "years of dedicated effort to prove to a slew of doctors" to have these drugs prescribed.
Also, there have been some pretty well publicized stories of young people who underwent gender transitions who came to strongly regret their decision, and they told how they felt, if not necessarily pressured into the decision, that there weren't "speed bumps" along the way saying "maybe we should wait a little longer before you undergo irreversible surgery."