Got to agree.
If it’s strategy consulting, he’d be better off in a quant field- econ, physics, applied math. If it’s organizational consulting (which is done by both the strategy firms as well as some specialty firms) he’s better off with the above AND psych (but the quant track, not the “I want to be a guidance counselor” track) and possibly sociology-- but again, with heavy quant. If it’s something else- anything that prepares him for a rigorous MBA will be fine (but I don’t think Leadership is what he wants).
Executive Coaching and leadership is a rapidly growing field. The best practitioners have decades of corporate experience (either up the managerial ranks in a company or as consultants). Breaking in as a 22 year old is going to be tough.
I’d take a look at the actual coursework. He’d need finance, econ, all the statistics he could get…