Real question, Bitcoin cash does it all and better with a stronger backing. Why Litecoin?
As far as I know, Litecoin appeared before Bitcoin Cash and probably has good technical data. For me, Litecoin is important today. The fact is that earlier I used Ethereum more, but after the problem with the high price of commissions appeared in the ETH network, I started looking for an alternative and found it partially in Litecoin. At the moment, I most often use Litecoin because there are cheap transactions in its network, which gives me the opportunity to save on payments while the Litecoin price has not yet reached its previous peak, which means there is a potential for future growth.