I'm a teacher. On a daily basis, I see the difference between an 11-year-old and a 13-year-old kid. 5.1 to 13 years old is very small. That's the height of an average kid of 6th grade. To be an NHL goaltender, the standards are even higher.
As already said, I was taller than him at the same age and my adult height is insufficient for NHL standards.
I don't know where you read that I said he was a man. Overreaction.
In an NHL where goalies under 6.0 have no chance of being selected, someone who is 5.1 at 13 has no chance. At that age, I was 5.5 and having had normal growth, I reached 5.11. No overreaction. Just thinking.
If you had thought about the average height of a 13 year old man you would not have written your message.