I hope it's use is as an actual currency - a store of value.

Business are hesitant to adopt cryptocurrencies because it's hard to understand it. How much is it worth? With bitcoin, the price changes minute to minute.  It's impossible to plan for the future and use Bitcoin as a real currency in those plans, because you don't know what it's going to be worth.

People, at least in the US, understand the dollar at a gut level.  My long-term hope is that people would be more willing to use cryptocurrency if they can understand it's value at that gut level.  

To put it in perspective of another dollar-pegged coin - when markets tank, people tend to sell their alt-coins and jump into Tether, because they know that it'll still be worth $1 an hour, a day, or a week from now - after the storm has passed.