Our Lost Youth

On a whim, I had a go at writing a rondeau today. I don't think it's too bad for a first try. Tell me what you think. I retain copyright.

In our lost youth, we used to laugh;
We'd energy enough by half,
Our interest piqued by petty things,
And in our backyard we were kings,
A broken branch our royal staff.

Yet now, before the epitaph,
Despite the claims of some riff-raff,
I mourn not long nor feel the sting
Of our lost youth.

But why? Youth is a golden calf
Some worship, but at last like chaff
It's borne aloft on Zephyr's wings,
And pining for it only brings
Denial, pain, a bitter laugh
For our lost youth.