Why don't you just hire a car service that will provide car seats for your children. Are your toddlers worth a few more dollars to provide them with the safety of child seats? You might be talking about $20.00 to $40.00 more for a round trip ride. If I had twin toddlers you wouldn't catch me on a shuttle van with no baby seats, I don't care what the cost is, the toddlers would be provided for. I would like to say more, but I better restrain myself.