Millennials ranked as worst tippers, and no wonder -- they're socialists - Washington Times

Millennials ranked as worst tippers, and no wonder -- they're socialists - Washington Times:

Fast-forward to June 2018, and there’s this: “Millennials are most likely to stiff servers. Ten percent of Americans ages 18 to 37 say they routinely leave no tip. Nearly one in three leaves less than a 15 percent tip at restaurants. … Overall, just 21 percent [of all adults surveyed] favored higher food prices and no tipping,” CreditCards.com reported.
How are the two matters connected?