In looking at the study you mentioned, II like what I'm reading. I think that children benefit when studies like this are implemented. The best way to prevent people from embarking on a road they do not really want is to do as much as possible to ferret out those who are not serious about the journey.

The study you mentioned describes in good detail the differences between two states: gender non-connectedness (which appears to be more transient) and gender dysphoria (which is more pronounced and long-term).

"Gender non-contentedness has previously been associated with mental health problems (Potter et al., 2021) and clinical gender dysphoria has been reported to co-occur with diverse psychiatric problems, such as depression and anxiety disorders, eating disorders, and autism spectrum disorder (Bechard et al., 2017; Dhejne et al., 2016; Donaldson et al., 2018; Holt et al., 2016). This may potentially be due to minority stress, discrimination and/or bullying (Pellicane & Ciesla, 2022; Tankersley et al., 2021). Future research should use more extensive measures of gender non-contentedness and gender identity to further elucidate developmental patterns of these concepts in relation to adolescent well-being and mental health."

I also appreciate the authors going out of their way to mention the limitations of their own study, in particular, one of the main questions they used to arrive at their conclusions:

The main limitation of the current study is that we could not use a very fine-grained proxy for gender non-contentedness. Although the YSR and ASR are widely used instruments, the item “I wish to be of the opposite sex” is worded in a binary manner, thereby excluding any responses reflecting a non-binary gender identity. In addition, this single item, with only three response options, may not fully capture the broader concept of gender non-contentedness. In a previous study in youth, gender non-contentedness was assessed in a similar way, but with five instead of three response options; “never,” “rarely,” “sometimes,” “often,” or “always.” In that study, 9% of individuals answered one of the latter four, with 6% of them answering “rarely” (Potter et al., 2021). It can be speculated that a large percentage of individuals in our sample who answered to “sometimes” wish to be of the opposite sex, might have answered “rarely” if this answer option was provided. Therefore, our numbers may overestimate the prevalence of gender non-contentedness.

So it seems that the number of people "changing their minds" may be overblown, according to the study's own authors. But like they said, more research needs to be done. Avoiding regret is definitely something that should be at the forefront of any interactions taken long before treatment is even contemplated.

Speaking of studies, did u catch this one?

https://community.gaytor.rent/topic/64729/most-gender-confused-children-grow-out-of-it-landmark-15-year-study-concludes