Celebrity Lifestyle Experts/Chefs
Since the 2010's began there seems to be an an excessive amount of celebrities (both movie actors and former reality stars) who have these lifestyle blogs and self authored lifestyle books popping up. Additionally there are many celebrities with cooking shows. This is judgmental on my part, but I have trouble believing that so many of these people acquired excessive Martha Stewart knowledge in a short number of years as well as learned to cook multiple meals during their time as busy actors/actresses. Like ghost writers who write a lot of these celebrity memoirs I feel like there are "ghost" lifestyle experts and "ghost" chefs who are behind the scenes teaching the celebrities all these things. Basically it's just another way for them to market themselves.
Now I know that there are some celebrities out there who do legitimately research and learn this stuff; however I doubt it's as many that seem to represented.