Girls, as you've gotten older, what are some things that made you "feel" older?

I've found that as I've gotten older, I didn't feel any older after turning 25. My body isn't as resilient as it used to be though but it's held up a lot better than I thought it would. I try to take care of myself (eat healthy, exercise etc...) and even though I had 2 kids, I did so at a young age so my body bounced back.

The only thing that made me feel "old" was that 40 year rite of passage where my boobs got squished flat to make sure they're not secretly trying to kill me :P

Girls, as you've gotten older, what are some things that made you "feel" older?
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