verb - to become mature

Raise up your beer cans,
Scream into the night and dance,
Reckless time, but regardless it is fun.

Sell your body to the man,
Grab a buck and close your eyes,
Touching more to widen what you've touched.

Because child's life is a thing of the past,
With restrictions and rules, go admit it.
And we all want to make up for lost time,
Spent in a penalty box, twiddling our thumbs.

And I look out,
and they do it too with you.
And I go back to my work,
and think that I may have clung on too tight

Of who I was
While everyone else raises their beer cans
And everyone else breaks into dance,
And call themselves grown,

But who am I to say who has grown?