Anyone else not really travel solo until their 40s? What finally pushed you to start?

Did my first proper solo trip at 43. Not backpacking, not a gap year situation. Just me, a carry-on, and a week in Lisbon with no one else's schedule to work around.

I'd travelled plenty before, but always with partners, colleagues, or friends. Solo felt like something I'd missed the window for.

Turns out I hadn't.

Curious whether others came to it late. What made you finally do it, and did it change how you think about travel generally?