We will have 2 in college next year, so that may be where you understood that we aren't homeschooling anymore. I still have 6 to go, so it will be awhile before I retire
When we do market, we sold soaps, handmade goodies, homemade breads and canned goods, plants of various types, and veggies.
The best way to test your local market is to visit your nearest one. We have several within 30 miles, but only one in our little town. The ones in the larger cities do pretty well, and one could do reasonably well, I think...but that's all relative. Weighing the time to prepare for market (1-2 hours_, drive to market (possibly around an hour), market hours _2-3) hours...we ultimately decided that *for us* our time was better spent elsewhere.
Now, having said that- we have much more fun teaching people to grow things rather than sell them our veggies. We sell them the plans to the people and let them grow their own. We started selling plants with the county Master Gardeners at their plant sale about 7 years ago, and 3 (I think) years ago, we branched out and started doing our own, plus still supporting the local MG sale. We have traditionally done 2 plant sales per year, but are experimenting with just doing 1 and seeing if that works for our time/profit rational. Meaning- is it monetarily worth the time we put into the project, or can we spend that time with better rewards (financial or otherwise) elsewhere.
That's largely up to the children. They know we have a finite amount of time, so if we are spending a whole day doing market, we can't do other things. They grew the plant sale to both make up financially for the weekly lost income as well as the lost time that they spend in other ventures. Now that the baton is passed down the line, we'll have to see what the next group decides. Abigail is now the oldest in charge, and she has big plans to expand the operation without leaving the house (smart girl). However, she doesn't like to sit in the heat, and is a bit of an introvert. Other children may enjoy getting out more, and if the market climate changes in our town- that would be a better fit for them.