If he is interested then he will learn very fast. I remember when I played for the first time I didn't know anything and after few hours of trying I learned to go in Kerbin orbit at any time, two days later I sent my first rover on the Duna and everything went well from the first try but also at that moment I didn't know about quick save so I was been prepearing a lot about all details and thinking and calculating in my head all factors and I did it from the first try