Very little, I basically achieved everything 10 year old me wanted (own a house, work with my dad, have a house husband, own a car - I was a really boring 10 year old).
You have described his occupation perfectly. It's not always as awesome as it sounds tho: tonight he had to referee 4 screaming boys in a bouncy house in our living room while making dinner. I'm happy to report everyone survived.
But that's awesome! Having simpler dreams means you can actually achieve them! That's so much better than having dreams of stardom that results in disappointment and wasted life opportunities for 99.99999% of those people.
And also, your dreams sound like very meaningful things that make a great life!