The "OP" knows what's up.
Here's a pic of Manangoi last year when he was supposedly 16:
https://i.ytimg.com/vi/N7Jl2-zA7BI/maxresdefault.jpg
Here's the interview with the "16 year old" last year:
https://www.youtube.com/watch?v=N7Jl2-zA7BI
He's a 23 year old teenager, just like Amos and Aden at the 2012 Olympic Games. You people really are brainwashed by the one-eyed bolshevik that rules your living rooms.
Manangoi is a good young runner. As soon as the folks in charge see him peaking out, they'll save the day with syringes and all kinds of help when it comes to avoiding drug tests. Never mind the help they'll get from officials who have vested political interests in keeping the charade alive.
Just peruse the videos of the world "youth" and "junior" champs in the 800/1500 the past 10 - 12 years on Youtube. Laugh out loud hilarity in some of them with the E. African juniors between 25 - 33 years old. The best is the balding 16 year old Eritrean here (who trips during the race) WHO FORGOT TO TAKE OFF HIS WEDDING RING before the finals of the 800m at the world youth champs (supposedly only athletes between 15 and 17 yrs of age):
https://www.youtube.com/watch?v=WhDxzvG2RrA
Disgraceful. But funny. And the SJW types will defend this to the end. No one with sense cares about Manangoi because he's just another fast twenty-something.