Why is it so that mistletoe is just for Christmas? Why can't it be a thing we use throughout the year?

12 seconds sound clip from the Yogi's First Christmas (1980) movie soundboard.

You can hear this line at 01:31:51 in the Blu-ray version of the movie.

Quote context

[...]

- Cindy Bear, I hereby crown you Miss Jellystone Park.

- And here's something else that goes with it.

- All at once I've just decided that I'm very much excited. I've been kissed, I mean kissed, by Yogi Bear.

- My heart's more than just aflutter, I can't speak for fear I'll stutter.

- I've been kissed by that bear.

- Why is it so that mistletoe is just for Christmas? Why can't it be a thing we use throughout the year?

- Each day I could insist and properly be kissed then cuddle close and purr in Yogi's ear.

- Then I could kiss him every night beneath the moonlight, and I could kiss him when there isn't any moon.

- I can't stand the thought of missing all that tender love and kissing

- That old custom's out of date, take it away!

[...]