If she encourages the masses to be fitter.
She has millions of followers for a reason.
People like her. (I’m not a follower btw)
Does she need a PhD to do squats? No.
Does she need a PhD to say “I do squats, they work for me. Try it”? No.
I’m guessing you have a wall full of Certificates.
I’d take Ms Selter’s advice over an overweight dietician every time.
I’m weird I guess, but I like my fitness ‘gurus’ to be fit.