Originally Posted by dabac

That can be argued either way.
And is quite dependent on how the bicycle has been stored.
Replacing 10-year old tires is certainly sensible from a general perspective.
However, it’s not like riding 10-year old tires automatically qualifies as a suicidal activity.
For casual, occasional riding, I’d give them a thorough inspection and decide from there.
For frequent, dedicated riding, I’d probably replace them.