The "hands on' work of a Combat Arms Officer is, in fact, always leadership - and sometimes command. I have never had more "hands on fun" than when leading troops. If by fun, you mean humping a ruck, digging your own trench, and being an effective fire team partner for your signaller, you will have lots of opportunity to do that. If by fun you mean sharing hardships, unloading a truck in the rain, and sharing a quiet smoke (or word) with a fellow soldier irrespective of rank, you will also have lots of opportunity to do that. Sadly, I have seen many who fail to take that those opportunities, and just focus on being "stuck" with command.
You are an untrained OCdt. You have just been offered some very pointed advice from an experienced soldier. You may want to think about the response that you received to your comments, and your quite frankly unnecessarily sarcastic response, and wonder if that approach will work should you eventually be a) trained, and b) trusted to command soldiers.