Way too young still
That is because you were given a line of BS and it became a mantra it is the "shaming" tool used by the ignorant.
Then the blind lead the blind.
No, what is irresponsible is tearing out the endocrine system of a dog without any medical reason to do so.
I think it is a real tragedy that we choose to not educate about the subject and our culture has become so "the dr said so" minded. When we go blindly along we are foolish. I mean really, we have a whole culture that never has scratched their head and asked WHY?