I absolutely loathe the term “PE” for what he is doing. As you say,he’s not a PE teacher. I totally ignored Joe Wicks and had no intention of making my kids jump about in front of the TV first thing on a morning during lockdown. I remember my colleagues dutifully getting their kids to do it from day one of lockdown and where perplexed when I said I wasn’t doing it. I honestly think they thought it was mandatory!!No they shouldn’t. It’s boring and they’re too young to do squats and lunges and burpees. He’s not a PE teacher, he has absolutely no idea.