Dear Self, this is a reminder to "man up" and send your son to Kindergarten without fear.
It would seem that you are nervous and anxious - Lopita! (that's stop in Finnish). Let me remind you that he is clearly ready to go and what do you really want? Do you seriously want him to stay home another year? Another 5 years? Are you nuts? You want your 12 year old to enter kindergarten with a slight mustache?
Seriously, you do not want to give off any vibes of anxiety. Don't you want to transmit peaceful, calm vibes of confidence so Lucas can feed off those? Aren't you committed to living a life free of fear?
Self, this is one of the best moments of Lucas' life. He is on the perfect path and you just have to trust that the men and women in that school have his best interests at heart. It doesn't matter that they don't know his quirks and preferences yet. They want him to succeed as much as you do.
If you build a vision of challenge and difficulty, that is surely what will be manifested. Here's the picture you need to focus on for the next two weeks - Lucas is happy, fulfilled and learning at a rapid pace. He has met great boys and girls and adores his teacher. See him moving about his new environment with assurance and excitement. He is eager to learn and learn and learn. You observe great and positive changes in him when he is home and you are so grateful for everything he is being exposed to.
Send him on his way and be certain everything is unfolding exactly as it is meant to. Be brave Mom!