Well, he showed resourcefulness in getting the racquet strung, no matter what.
I think the best thing you can for a young beginner is to instill the importance of planning the string job and creating the equivalent of a check-list and road map. Verify all of the racquet-specific parameters from the manufacturer or another of the many resources available online. Things like the pattern; recommended tension range; 1 or 2 pieces (or either); length for M's and X's; start at H or T; skipped holes (it doesn't hurt to place a piece of scrap string in each skipped hole when just starting out); tie-offs, etc. Once everything is organized and pre-planned, it is all about being methodical.
If he plans things in advance, I am betting on a perfectly usable string job as the result.