Re: "one of the kids has an MBA"
Q: "How do you know if someone has an MBA?"
Other than it being the suffix to their email signature name, business card name, linkedIn name, no doubt the numberplate on their leased/PCPd Audi is something like 'AB18 MBA'?
The only other people I've seen do this are junior HR personnel who take a course and suddenly their last name is CIPD, despite the office being full of people with degrees from bachelors to PhDs who think it vulgar to do so.