25% of the Earth's population is younger than 15. Assuming 20% of them use the internet, the TAM (not including the <15 year olds) is 80% of the world's population.
3 out of 4, or 75%, seems like nearly ever human, I'd say (though it is a matter of opinion I guess.)
3 out of 4, or 75%, seems like nearly ever human, I'd say (though it is a matter of opinion I guess.)