I'm 73, and started by doing a 'CLAIT' course at the local college, and going in to their library every day. I got carried away, and went in every day.
Since then I have done all sorts of things for myself and other people.
My advice is... Get him to go to the internet and play with it, and bookmark AnswerBank, there are people out here who will gladly help him with any problem he may get. With their help I have downloaded many helpfull programs, and have been help with many problems, when I felt like throwing my computer out the window.
Tell him not to be afraid to try.
Wish him good Luck, and happy surfing.