That is exactly what my wife is like when out at a restaurant. We don't get to go out much (usually only for birthdays) so when it is her choice she will go to the place she likes and order what she likes... unfortunately the place she likes closed down, but fortunately a new Mexican place had opened up. We went there she order her usual and it just alright (it wasn't bad just not like the last place serve it). Next time We went there she "had" to try something new (chicken burrito) and loved it - and was kind of kicking herself for not trying one sooner.
So I agree that is how most people are - they don't want to waste money on something the may not like, and will only give it a chance if they have to - unfortunately for beer this usually means only when it is free and there is not BMC to be had