Haha, I've had that same thought. The Eagles are older than my parents, not as old as my grandparents but probably old enough to be, so finding them attractive does feel immensely weird sometimes. Like you, luckinight, I wish I had become a true fan before Glenn passed.
I don't like any music more recent than the 90s, and my favorites are from the 60s, 70s, and 80s. (The music on my computer plays like a classic rock station). I barely even know what music today even is, I am so out of touch. I used to be embarrassed too but I've embraced it now.