About 10% of the total world population is using it on a weekly basis. Take out those too old or young or illiterate technically or otherwise. Now subtract out the people without reliable internet and computer/phone. That 10% gets a whole lot bigger.
That seems like pretty strong evidence that it is generally, if not universally, useful to everyone given the opportunity.
That seems like pretty strong evidence that it is generally, if not universally, useful to everyone given the opportunity.