Are you saying they know how to sail but have never raced?
If that’s the case, there is a benefit in dinghy sailing you won’t get in keelers. Basically, they are geared up for teaching. Dinghy clubs will have a chase boat, and a learn to sail course which morphs into learn to race and the rules. Once racing, a chase boat can help with basic sailing, and there’s fleets where it’s expected many are still learning rules, so much assistance is offered. Crashes typically aren’t expensive and repairs if required are easy and quick (relatively). In keel boats, there will be less people nearby to h