60 years old here.

As for commuting by bicycle:
It's not too hard.
It's not too dangerous.
It's not too dark.
It's not too long.
It's not too hot.
It's not too cold.
It's not too rainy.
It's not too early.
It's not too late.

Also, ride what you got and wear what you got when you're doing it. Don't worry about what anyone else thinks, especially those who suggest you are crazy. You very well may be. Why let it stop you?