After the age of 3, if you send your baby to kindergarten after this period, I think it is a bit late, because the 3-year-old baby has a lot of mature thinking. If you send it at this time, the treasure mothers will definitely feel that it is not easy to send the baby, the child will cry more seriously, and the adaptation period in kindergarten will be lengthened accordingly, which is not conducive to the child's health, and some bad habits formed at home are not easy to correct. The most important thing is that children in this period will be more "independent", less accessible, and so on ... so I personally think it is best to send them to kindergarten before the baby is three years old.
As for which kindergarten to go to, it is obviously inappropriate to cut other families' expenses in order to go to an expensive kindergarten just according to their own family's economic situation, because kindergartens are basically nurseries now, which are too expensive and unnecessary.