sozobe wrote:Out-of-left-field, probably-not-true, posting-it-anyway idea...
I wonder if your parents' marriage is less than stellar and they have dealt with that in part by focusing outwards, and that they're scared of what will happen if they don't have that distraction.
Well my mom was 18 when she got married, my dad was 22 so they were both very young. When I was young my dad worked alot of hours - made great money in OT. I don't remember them doing much as a couple - mostly it was family time. However, as they kids got older, they have traveled a bit together - that means driving to NH in most cases sometimes as far as PA (all from east coast Mass). They are not really the adventerous type.
My mom first got on an airplane when I was in college and won a trip to NY. Since then we got them on an airplane for trips to Florida and California - we paid for this. We have also tried to some extra stuff like that when we could afford it as to thank them for all their help with the kids.
I do think to a degree they may be afraid like you said. My dad tends to do his thing and my mom hers. When my dad said he would retire my mom used to say he would drive her crazy.