And while you are talking single incomes a married couple, (or living together couple if they aren't married) is only paying 1 rent but doubled their paycheck. Being 22 and just starting out shouldn't be comfortable. Working for 30 years and managing your money is where you get comfortable.
People want what their parents have but forget they had to work at it. My grandfather started in a 2 bedroom home he built himself and died a millionaire. Nobody starts with it all. Earn it, manage it, and then you appreciate it.
And I still don't know where these magic 75k starting salaries are for virtually every other field. What bar tender, (22 first year employment), do you know making 60k with 13 weeks off?