For me, altcoin has many advantages, one advantage is it gives to the individual money to sustain the basic needs, It also reduce the increasing number of unemployed in some countries, The people who work in bitcoin develops the ability to reason out, enhanced the English proficiency, that's the some advantage of altcoin
I think one of the best advantages of Altcoins is being another source of investment which is more potential to earn big amount of profit compare to other business but the amount of profit is depends on the capital invested because the higher amount invest the bigger chance to earn big profit.