The only place I think altcoins has a future in is gambling, normal gambling but first and foremost e-betting.I can not see how it will take over from normal currency's in the world of buying or selling any other goods then btc. The main reason I think this is that nobody wants to be that guy that bought two pizzas for 10000 btc 5 years from now, so i cant really see what else it has a real future in. But that is only my opinion, What do you guys think?
Here in my country we have some altcoins that can be used here through our exchange that we had it now, which is Ethereum, Ripple, and BCH and of course Bitcoin, any among of them can be use as payments in billings, mobile load, internet, tuition fee's, and can also be transfer for incoming savings, something like that.