Taco Bell started serving alcohol because customers were already topping off their drinks.

Taco Bell started serving alcohol because customers were already topping off their drinks. “Could you please leave a little off the top” became a common refrain in the fast food restaurants, according to their COO, so when Taco Bell launched its fast-casual Cantina restaurants, adding alcohol seemed like a no-brainer for the Millennial and Gen Z fast food favorite. Twisted Freezes each have a shot of the customer’s choice of booze in the blend. (Business Insider)