If your LO attends a Montessori preschool and you plan to transition them to public school at some point, are you planning to transition at Kindergarden or 1st Grade (or other)?

I'm considering enrolling my LO in a Montessori preschool, but I'm concerned that if don't take advantage of the 3 year program (pre-school, pre-K, Kindergarden) she won't obtain the full benefits of learning to be a leader.

However, if we do stay for Kindergarden and then transition at 1st grade, I'm concerned it may be a tougher transition since she will be new (and most of the kids will have done Kindergarden there).

If your child has already transitioned, how did they do at the transition? What were your pain points?