That was a hyperbolic statement, but I think you understand the gist — it's that you're acting as if this hormonal treatment is something teens will do relatively casually, rather than the serious, procedurally involved process it is.
I have to admit, I'm reminded a bit of the anti-choice types who portray abortion as a casual, irresponsible thing women seek out as an alternative to birth control, like they'll terminate a fetus on their way to Starbucks. I'm not saying you're just like them, but it's absolutely important to stress that people in both cases are fully aware of the seriousness of what they're doing, and that it's a highly emotional decision.