That was my first thought too. Just think about living to 107. That would mean she was born in (or around) 1910. A child during WW1, before cars were commonplace; a young adult during the great depression; an adult during WW2; the expansion of suburbs; through Vietnam, the computer revolution of the 80s, the Internet in the 90s... it must be amazing to observe that kind of time span first hand. A lot happens in a century.
[1] https://www.theatlantic.com/magazine/archive/2013/11/dude-tr...
Then there is the use of "dude" to refer to a specific person (singular). This is a very rare use of "dude" in reference a woman, and usually is used as commentary rather than a literal descriptor, or ironically. "She's such a dude." It is definitely making a comment on gender or stereotypes.
I would be very confused if you referred to me as a dude in everyday conversation, wondering what you were trying to say. On the other hand, I did recently say about myself, "I'm such a dude" when making a comment about my approach to an unfortunately often-gender-stereotyped activity, housekeeping.