I disagree. I only shoot film, but I think digital is better to learn on. You show people the difference in DOF etc. aperture makes right away, rather than say 'I'll process this film some time, remind me to show you the difference'. It may teach patience, care, etc. but for actual photographic technique, I think digital is miles ahead for learning. Especially for a younger person, where the cost of a film and processing might blow all their pocket money that week or month.
I love shooting film, and film cameras, but if someone asked me to recommend a camera to learn on, it would be digital. They can move onto film if they want to later on.