I learned to let go of grade levels a long time ago. But yes, three of my kids were learning at home when they were the typical kindergarten age. We did about an hour a day of sit down work and the rest of the day was for free reading, backyard exploration, socializing, sports, etc.

It's hard to let go of the idea that they need to follow a particular course, but once you get started, I'm sure you'll love the freedom that homeschooling provides.