We have had a very positive experience sending our youngest to kindly while the older 2 have been home.
He has his place to shine, not overshadowed by sibs who are bigger, faster, smarter etc.
He has learned more self control there than he had at home and that has brought confidence.
His fine motor skills are way better than they would have been had he stayed at home.
Another benefit is that it has helped our family connect more to other ps families in the neighborhood. That has benefitted my homeschooled kids too.
It is not perfect and we have had grass-is-greener at times. He is in 1st there now and is thriving. His teacher is amazing and has broadened his interests in many ways. We will probably bring him home b4 3rd but in the meantime having him there frees me to focus more on my middle who need me most now.