Skip the intro. A how-to video on growing calves doesn't need to explain why you picked the topic. Get to the instruction and stop wasting your viewers' time.
Make sure you can deliver on that purpose and in a way that doesn't waste people's time. Don't go off into your video like with 3 minutes of intro. You don't have to justify it, right? If I want to do a video called, uh, how to grow calves, right, I don't have to start it by saying, I was on the bus the other day and, uh, the guy sat next to me had big calves and it made me feel about my calves. And then so I thought I'd make this video about how to grow big calves. Like, you don't have to justify why you're making a video
"I Haven't Worked in 10 Years" - How Rob Lipsett Built a £1M Fitness Empire From Nothing
