There have been too many cases of distraught teenagers who have killed themselves for this not to be available. For example, there was tragic case here of a girl who, with the onset of menstruation, could not deal with it and killed herself. She looked and acted so much like a boy already that it was crazy that she could not get puberty blockers. Obviously, her/his parents were devastated. There have been too many cases like this.
But a decision to provide puberty blockers should never be taken lightly. And I doubt it ever is. I know of no "trans activists" who advocate otherwise. This is just a boogeyman used by anti-trans activists.
In respect of sport, I do not a agree that trans women should be allowed to compete as women. That would be unmanageable. Trans people understand this. In respect of toilets, I was at our major hospital yesterday and I noticed that all the toilets for the public are unisex. That solves the problem and such facilities are increasingly being made available in public spaces everywhere.
People like Ms Tickle are outliers. Unfortunately, they get all the publicity. She and her ilk are playing into the hands of anti-trans activists and risk making things even harder for young trans people. I hope that court case in resolved quicky and she disappears. The last thing most trans people want is to cause disruption. Once they have made a successful transition, they just want to get on with their lives like everyone else. And most do.