I don't get the "anti lessons" at a young age. One on one or small group work with a knowledgeable hitting coach can work wonders. But it should be age appropriate. At the young ages, a few lessons covering the basics should cover it. No need for weekly, or by weekly, sessions. As the kids get to HS and above, then pick it up. Hitting is one thing you need to do a lot of to be good at it.