At what age do you consider someone to be old?

Age is irrelevant. I see old as someone who has forgotten to live and laugh.

When they start worrying about age and what'll they wear today.

40

80+ my mother never really slowed down until her 80's

70's

Hmmm???? 105

70 maybe.

After 70

I think it varies and has more to do with when someone has lost the will to live than physical age.

Any age older than me. 😕

30

More and more I'm seeing it as a state of mind. Sometimes I feel really old. My octogenarian parents (who recently took my niece to an Alice In Chains concert) rarely do.

Depends on the person. As far as men...there are tons of very active and attractive men lots older than me :)

seems to me the 40s are pinch point where if you don't end up with some life-threatening disease or disorder, you're good for another 20 years.
Those that hit this brick wall in the 40's seem old, of they make it through healthy those folks usually look good and don't seem old 'till they hit their 70s. Then. Old.
Just my observation after 40+ years.

If I had to give a specific age, I would say 45. It's hard to do that though because personality and general health have a lot to do with it, too.

But yeah, to answer your question: 45.

Age when you can't bend to tie your shoe laces.

75-80.

22

It's all how they carry themselves. I am close with a 71 year old that can run circles around a lot of us.

The age at which they no longer have vitality.

60.

32

65

70