"Cousins aren't usually of the same age, but there isn't that much gape in their ages."
How do you know?
"Although it's possibly true, I still find it strange that the cousin of the "12" years old Mary is somewhere around the age of 70. It just doesn't make sense to me."
Nevertheless you will have a hard time finding any source that says Mary wasn't between 12 and 14. Scholars concur that based on what is known of Jewish tradition of that period, girls could be betrothed at 12 but not married until a little older. For Mary to have been betrothed but not properly married to Joseph yet, she would have had to have been in that narrow age range.
When you say it doesn't make sense, Is this what you're feeling?
I'm comfortable mentally, and an open minded Christian. I'm just expressing my opinion on a controversial subject..that's all.
I appreciate that you challenge me. To be agreed with all the time would be terribly boring.