Does your grandson already have a scythe?
Have you or your grandson checked out scytheconnection and fully read what Peter Vido has put up about scything?
I live in Blanco and I've only started using scythe last November so I'm far from an expert. I would however enjoy helping other people interested learn to use one as best I can.
I find it fun to use and it does not have to be all that physically demanding to use.