If you're in the US or various other first world countries who's fiat is at the top of the fiat pyramid, and you have confidence it will remain that way, then the reasons for Bitcoin being useful will be harder to understand.

It's global. It's available to the unbanked. It's available to anyone. It's inflation resistant. It's essentially what everyone wanted banks to be, when they were backed by gold. Instead of gold, Bitcoin is backed by energy.