People make a good point - relative intervals don't tell us much. I'm in my late thirties and picked fifty years - I have the genes for longevity, I think (though not Lazarus Long style), since three of four grandparents lived to their late 80s and one great grandparent even made it to 99.
Look, look, another woman here!
The rest of your commentary makes sense to me. So far, I haven't been getting much advice that is critical of our plans, except from one person: my very traditional mother, who is probably secretly horrified that my husband is going to stay at home. She's already claimed that my longterm breastfeeding plans will never work out (no, not _that_ longterm, I just mean that I'm not doing formula if I don't have to), that trying to use cloth diapers is silly and my plans to downsize to reduce debt so that we can afford for my husband to not work mean I'll "never live in a house that big again".
Okay, I've gotten it off my chest now.
re: average age of marriage
The average age of marriage for women during much of the middle ages was in the early twenties, and older for men. That's for the average person, not some member of the royalty that had an alliance marriage made for him/her when they were children, usually by proxy and certainly not consummated until they were of age. The reason for the commoners needing to wait: they needing to actually learn how to do a job, even if that was farming. Mommy and Daddy peasant weren't going to be able to set them up, so they needed to actually have earned some money to have an independent life.
I remember as a child reading BASIC programs out of Compute Magazine for my dad to type in on our TI computer. That likely means I was reading code before I read my first real novel, which is amusing.
I try not to admit at work that I've had to learn VBA for Excel for a tool we use.
There's actually a fairly good (for a media tie in) novel written by Andy Robinson, the actor who played Garak, about his past called A Stitch in Time. The series of novels set in post-series Deep Space Nine have been good overall, but unfortunately they've slowed down (hopefully not stopped!) coming out so they could make room on the release schedule for drek related to the recent movies.