Only in NY would you worry that there isnt school transportation for all grades. In almost no other (outside tri-state) community is there state-supported transportation. Parents need to find ways for their kids to get to school. They can:
-learn to not associate with goyim and travel in groups of frum kids. they need to learn not to look and associate with those who you shouldnt be dealing with
or
– have a parent accompany the kids as a chaperon but this will not work out very easily. Parents work.
or
– have the PARENTS pay the school to arrange a private bus service. It should not be done by the state and it should be optional. If you cannot afford the service then you need to find alternative modes of transportation. No one should be forced to use it and no one should be forced to pay it. those who pay tuition can pay for this, but it is an EXTRA.