https://www.indeed.com/cmp/U.S.-Navy/faq/drug-test
Here is the policy on drug testing before admittance into the U S Navy. Not all drug tests include screening for ethyl alcohol.
I remember when my former boyfriend served, sailors underwent random drug testing as the Navy didn’t want seamen selling U S secrets for drugs, but former b f had problems with booze, so I’m not sure if those random drug tests included ethyl alcohol, either.
But I agree. It is preparation to serve the U S Armed Forces, and maybe standards have sunk if cadets are so intoxicated they can’t give or deny consent for sex. Not sure what the solution is, though.