The world run by MBAs…

If you are old in a professional field, you have years of experience they have to pay you for, so they hire the young guy to make the payroll smaller, even if it causes problems for some other department, because no one high enough to do anything about it is going to catch it.

If you are in the general labour space, making min wage, they know they can’t expect the same energy, and can expect you to know the ‘advancement’ they dangle over ambitious min wage workers’ heads doesn’t actually exist, so they will get more labour out of a kid for the same money.