Age- just a number

I recently didn't get a job because it went to an "older actress" who "carried more weight on her shoulders".
As much as I appreciate comments and constructive feedback, I was puzzled- who over the age of 29 would want to do an unpaid understudy role including leafleting and ushering duties in another town?
I replied with the question how old this lady was, and received the reply that she seemed more weighty somehow. I take it she IS younger than me.
Strange thing is, I am getting too old to play teens, yet late 20's roles pass to "weightier" people...
Give me a shovel, I want to bury myself!