Calling what those clinics do with blockers, hormones and surgery (not the counselling) 'healthcare' is misleading. Activists claimig that 'transkids' are being or will be denied healthcare is disingenuous at best, dishonest at worst. If any of those children fell ill or had an accident, the NHS would be there for them as it would be for any of us!
Slowing down the rush, taking time to counsel and talk, involving parents and carers, exploring likely future paths and ensuring children have a grasp of what they're giving up as well as potentially gaining takes time and money, but I consider it would be well-spent.
Dealing with the future fall-out from children who are only ten - ten! - at the youngest is likely to be far more expensive, not to mention the potential human anguish being called down on individuals who later change their minds or understand too late what the personal costs are.
Puberty is the passage to adulthood and allowing children to skip that step can trap them in a twilight zone of perpetual but aging childhood. "Stop the world, I want to get off!" is something we have all probably felt during adolescence or since, but in my opinion, granting that wish to a pre-pubescent child lets too many genies out of too many bottles to be safe.