The older end still holds onto gender roles
Most individuals I know in their late thirties still believe in gender roles to some degree. Women of this age will still mention something if their date doesn’t offer to pay or walk them to their car. Men of this age still feel that they should do things like pay for dinner and walk a woman to her car. I know I personally still need men to fulfill some gender stereotypes, and I’m pushing the older end of the millennial spectrum.