My daughter's Montessori school had similar class sizes, 25-30. The kids were loosely grouped by age with ~4 years range in the same room. She was not uniquely

My daughter's Montessori school had similar class sizes, 25-30. The kids were loosely grouped by age with ~4 years range in the same room. She was not uniquely successful, though I will acknowledge any private school will tend to be self-selected. And you still missed that we had multi-age schoolhouses for generations that were successful. If you want to argue for smaller classroom sizes, I'm on board, but you won't get a single vote from me for school funding until you're ready to completely upend the Prussian model. It converted our public schools into literal prisons for children and is a scourge on this Earth.