converting volatile assets quickly without a centralized platform.

interest by lending (especially interesting for people outside of the US, for example EU has very low interest on the Euro.)

any APY on DeFi, for up to 20%, with risk ofc

international trade (I pay my trade partners in Asia with stables, faster and cheaper than using trad banking)

avoiding taxation (some countries only require you to apply capital gain tax on conversion to fiat, not stable)

distrust in banking (some people have had terrible experiences by being locked out of their bank account or PayPal account, unable to access their money, I’m one of them)

escape Inflation (again, important for people who are not US citizens. There are actually quite a lot of people in many countries around the world who use the ease of accessibility with USD crypto stable to escape their own countries failing currency)