Debit cards are awful. Many purchases that you make with a debit card (gasoline at the pump, for instance) will end up double charging you, with the actual amo

Debit cards are awful. Many purchases that you make with a debit card (gasoline at the pump, for instance) will end up double charging you, with the actual amount, then some sort of hold in addition. Sometimes the bank gets their shit together and clears it out correctly, and sometimes they don't. Combined with the general volatility in how long it takes funds to clear when deposited (way longer than it should...), and unpredictability on how and when charges will be computed on your debit account, it's just smarter to use the float that credit cards offer, even if there were no rewards.