How incredibly small-minded. I respect people who've tried something and decided it's not for them. But to never even try a different kind of food? I suspect it's less that he's found what he likes and more that he's scared he'd find out he actually liked something else better, and has wasted those 10 years.
> How incredibly small-minded. How incredibly patronizing. Have you considered that people have different tastes? Personally, I hate eating; if I could take a pill to replace all my nutrition needs, I would in a heartbeat, even if it costs more than my current dietary expenses.
I think "stick with what you know" can be a sound strategy if you are loss-averse and generally content.