Why don't we ever sing the full version of Jingle Bells?

It's that time of the year again.......rehearsals for the Christmas pageant. I was putting together the medley of Christmas carols to be performed at the end. In an effort to "pad it out" I googled the full version of Jingle Bells to add to our repertoire. This is what I came up with

A day or two ago
I thought I'd take a ride
And soon Miss Fanny Bright
Was seated by my side
The horse was lean and lank
Misfortune seemed his lot
We got into a drifted bank
And then we got upshot

Erm. I guess we'll stick to the one verse then, as usual!