+1. Only other suggestion I'd have is have him try commuting by bike for at least a month or two on your bike or a capital bikeshare bike (if close) before investing money into gear and a bike. I wasn't a biker when I started commuting 8 miles round trip for work, so I used a capital bikeshare bike for the first 2 months. It gave me time to 1) make sure I really was going to stick with biking for commuting before investing money, and 2) get a better sense of what I really needed and what I didn't. I figured out that my paved trail was actually quite bumpy, that I don't like fooling with lots of gears, and that my running tights aren't cutting it for biking every day

. So have him do a trial period before you start investing real money.