If you're a SAHM, do you plan to return to work ever - if so, when?

I grew up with a SAHM and she is still a SAHM (I have a 9yo sister at home, and they homeschool)! I know another SAHM who SA even through her kids going to college, and volunteers, keeps house, cooks, etc.

but others I know plan to work once all their kids are in school FT.

I'm a PT WOHM/PT student, but once my child is in school I will likely switch to FT, given that I'm done with school at the time.