For a four-year-old, you’ll see that you’ve already been unschooling for four years, it’s less a change and more of an evolution of your current path.
We need to see our children as distict individuals. Many (most?) kids don’t like worksheets. Zero adults, who aren’t teachers, use worksheets.
I don’t play an instrument, but without coercion, my sons play multiple. If I projected my difficulty with playing on them, they may not have seen their own abilities.
Mandatory kindergarten (which I believe is only meant to train kids to sit still and listen to arbitrary authority), doesn’t start until age 5. You are in a beautiful phase of life. You can enjoy it without the pressures of performance.
Unschooling is not easy. You will always worry about whether you are doing enough. You will be upset when a school friend quizzes them and they don’t have the answer. You will be embarrassed at a family gathering when your child says something stupid.
You will often be put on the spot to explain your choices. You will be unsure.
Confidence and bravery grow along the journey, but it is a difficult process to let go of worksheets and all the schoolish things.