I struggle with the "socialization" argument for school. It's an institutional environment systemically stratified by age. How in any way does this model commun

I struggle with the "socialization" argument for school. It's an institutional environment systemically stratified by age. How in any way does this model community life outside of school? Compared to homeschooling in a class of one, school is a more social environment. Learning with only those your own age, taught almost exclusively by women between 25-50 (65 at most, but rarely)--is that not an odd way to structure a human environment? In my anecdotal experience, put a school age kid with a young toddler, or a senior over the age of 70, and an empathy switch gets turned on. This kind of socialization is undervalued.