In "When I Am An Old Woman," how does Jenny Joseph present her feelings of growing old?

In the
poem, the narrator presents her feelings about growing old in a humorous and upbeat
manner.

She portrays the idea of growing old as a period of great freedom.
During her sunset years, she will no longer need to adhere to societal expectations for accepted
behavior. As she presumably will have little responsibility for anyone but herself, Joseph
maintains that she will be able to engage in activities that were previously considered socially
unacceptable.

For example, the narrator looks forward to wearing clothes that
don't match, just for the fun of it. She looks forward to spending her pension on frivolous
items and later complaining about having no money to buy nourishing food. She maintains that it
is the province of the elderly to do outrageous things, especially if they were responsible
figures in their younger years.

The narrator looks forward to making up for
the "sobriety" of her youth, learning how to spit, putting on weight, eating whatever
she pleases, and learning rude manners. She revels in the idea of being able to sit down
wherever she is, if she happens to be tired. For now, though, she believes she has to act
respectably; after all, she must "set a good example for the children."

Despite wanting to set a good example, Joseph muses that she should probably start to
"practice a little" these odd new ways she will take up in her elderly years;
otherwise, people may be shocked when she is old and suddenly begins acting contrary to her
present behavior. In all, the narrator presents her feelings of growing old in a lighthearted
and upbeat manner.