> I still do not understand why it even exist? Is it a tool to get around trading in USD? Why is it so popular? You can’t keep USD in a crypto wallet, only to

> I still do not understand why it even exist? Is it a tool to get around trading in USD? Why is it so popular? You can’t keep USD in a crypto wallet, only tokens that operate under various protocols, ERC20 being the most popular. ~Most people don’t keep their tokens or USD on an exchange on a long term basis (probably not a bad idea given past events), so they need a way to keep USD in a crypto wallet they manage themselves. So you get tokenized forms of USD, so-called stablecoins, to fill this need.