Bitcoin offers real interest rates, a real savings tool. It gives the saver a greater sense of confidence that every sum she is able to save today will be buying her more in the future. Bitcoin has grown in purchasing power year by year on average and offers a real interest environment.
This reduction in uncertainty motivates long term thinking.
The tradeoff with the future self is worth it. It pays off to avoid buying shoes now that I don’t really need if I know I’ll be able to buy more with that money in five years.