Where do i can buy coffee by Litecoin? 'Cause as i know even bitcoin doesn't have such services in different countries. If you mean about one coffee machine in one cafe in one town in one country it's doesn't mean anything.
I said it is supposed to be, thats what litecoin aims at, to be a currency, faster payments and cheaper than bitcoin. If it will be i dont know, right now nothing can be used to buy a coffee, fast and easy thats the truth
Litecoin has the same disadvantages as Bitcoin, so i don't think that it will be very popular. Also, Litecoin haven't some his own pros (like Ethereum with his smartcontracts and sidechains). And it's very bad for coin of future.