Age limit for comp / pro?

What is the minimum age for a player to be to compete in professional competitions?

Is there a qualification process?

My son, he's 12, and Immortal 3. Heading towards Radiant, and given he's young and has some skill wants to know the 'path' towards a future E-Sports.

Are there unofficial tournaments that be entered? Any academies?

Most parents would support their children through football, golf, whatever - my son is taking this seriously.

Advice, comments, guidance welcome.

P.S. Any Radiant players or Pro's want to take on '(probably)' the youngest Immo 3 in Europe?

Pyro#him check out the tracker and hit us up for a game....