BTC is the father of all altcoins cryptocoins, when BTC accepted world wide, some AltCoin will follow BTC wins.
Honestly some trusted company only want to accept BTC only for their payment. (for now)
FTFY. Litecoin is the father of all altcoins.
--
It is nice to see that the places to spend bitcoin is broadening and we're seeing a lot of people noticing bitcoins. I just hope that these kind of moves would not be limited to just online services but rather physical stores as well.
It has been proven several times now that no altcoin is going to overtake Bitcoin and no altcoin is going to give you as many gains. Sure, you can risk it and you can say "when the halving happens and the price goes up, im sure Litecoin will go up too because it's the silver of crypto". Well that is a nice gamble, but still a big gample. Honestly its best to stay 100% BTC unless feeling lucky.