My sons school have a system in place for parents to drop their children off in the car in the school grounds, child exits car and walks straight over to their line whilst parent drives off. There's no age in the school policy. Some parents use this, others drive and park elsewhere and others walk.
I normally walk dc to school or park and walk as traffic around the school can be busy but yesterday morning my husband went off to work taking my double buggy with him so it would have been impossible for me to manage dds so I dropped DS off in the car in the school grounds and watched him as he went straight over to his line. He was quiet happy to do this. However I can't help but wonder is he too young should I be waiting with him until the teacher comes along? The reason I'm asking is dd1 will be starting Montessori in January and if I could drop ds at school at 8:55 id be able to get dd to Montessori for 9:00.