You should read his book. That he made it out of Africa and became a pro is nothing short of a miracle.
To get to Salzburg (the city the worlds we speak of were located in), he abused the login details of the incompetent head of the Kenyan National Cycling Federation to enroll himself to the start list of the championships, and then he went to Europe all alone and entered the meeting of the national coaches soaking wet (because he had had to ride there in the rain, and was his nation's team leader given he was there alone) with his bike, after which the South African national delegation took pity on him and let him have a bed at their hotel for the remainder of the stay.
This is something his detractors always miss. They go on about how the greats always show their talent early. But in reality if they'd had Froome's background, they'd most likely have been bike mechanics or farmers.