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LTC is the only alternative cryptocurrency capable of handling high network transaction fees. LTC can be used more for daily transactions than Bitcoin.
I'm not sure what you meant by this, but I'm sure you're mistaken.
There are many cryptocurrencies with significantly lower transaction fees and faster confirmations, not just LTC.
Although I like Litecoin in general, I really wouldn't label it "the only alternative cryptocurrency capable of handling high network transaction fees."
Here are just a few examples:
[source]Nano: $0 fees, 0.14 seconds for confirmation
Digibyte: $ 0.0005 fee, 5 minutes to confirm
XRP: $0.00078 fee, 4 seconds to confirm
BCH: $0.0024 fee, 2.5 hours to confirm
Stellar: $0.004 fee, 4 seconds to confirm
Dash: $0.0043 fee, 15 minutes to confirm