tether and other "stablecoins" exist so exchanges can exchange without doing the individual cryptos, basically. If i want to trade dogecoin for btc, there's pro

tether and other "stablecoins" exist so exchanges can exchange without doing the individual cryptos, basically. If i want to trade dogecoin for btc, there's probably some stablecoin in the mix somewhere. This is how it was explained to me, and it doesn't make much sense - except that "moving" a lot of BTC between exchanges might affect the price, and depending on which exchange is on tthe receiving end they could take a loss on the "conversion" - whereas the dollar is much slower moving, and moving a hundred million "dollar" valued things is unlikely to devalue the dollar to any significant amount. I've never paid in or cashed out actual currency into crypto and i've never used an exchange, so i may be 100% off base and i hope i am corrected.