Ask exploding heads

Indeed I do, because they will be able to sell this person hormones for the rest of their life afterwards. Even if the person regrets it and de-transitions afterwards they were already castrated so they'll still need to take hormones for the rest of their lives (or deal with the awful hormone deficiency symptoms that can shorten their lives) for the medical industry it's a win-win. Either way they get a customer for life buying the drugs for the rest of their life because they can no longer make them on their own.

That's probably the biggest reason they're pushing this mutilation on children, if they get them when they're young then they'll be customers for much longer than if they started when they were older.