My particular case might be strange since I came from quite a religious background.
Step one was both of my parents concern as I failed to mature properly, and was also born with what is called a micropenis. This of course was brought up with several doctors. The doctors really had nothing to add to the situation.
Step two was looking into religious texts for the answers since the medical world failed to provide my parents the answer they hoped for. The answers were found within those texts, and the subject was to be dropped.
Step three was where the teasing began. Older brother noticed quite a difference between us in physical attributes, and of course started teasing me about it. Mom was not there anymore as she left us when I was 7 years old.
My father also noticed that for a boy now 13 years old, I failed to mature even in the least in the men's department. As a 'joke' he started calling me Jolene. Before long both of my brothers were joking about it as well. The breast buds with puffy nipples really didn't help either. One of my female cousins realized it, and was supportive to a point. Yeah, I did try on some of her clothes and they were a perfect fit but Dad caught me dressed in her clothes and that didn't help matters.
Step four I tried my best to strive to be as 'manly' as possible. I guess I impressed my father enough that he stopped calling me Jolene as well as started correcting my brothers when they did, at least at home.
By High school I had 100% of my father's support, not so much my brothers. My dressing up in a pink skirt and blouse my cousin had loaned me was all but forgotten by Dad. But my chest was filling out to just under an A cup by my senior year. I had already started wearing a t shirt with another shirt over it and slouching to hide everything for some time now.
I guess in my case I was teased by my parent (father), and I strived to earn his respect. It succeed to drive me. My father knew I was different, but he worked around it. He did what he thought was best for me by pushing me into manhood, even if he used teasing to accomplish the task. No grudge against him at all.
I still don't think my condition was handled properly and believe the outcome would have been much different if it had. My teenage years were unbearable and traumatic. But parents did the best they knew how.
Society today sets norms that it expects everyone to fit into, those of us that don't are then forced into these norms against the natural tendencies of ourselves.
Maybe instead of working doing Land surveying, I would have found my place managing the women's department at the mall. I don't know where I would have ended up, I just know it would have been different.