It’s not lost on me that many of my children’s “firsts” are my “lasts.” If I stop and think about it, it feels a little bittersweet. Therefore, it is perfectly logical for me to not focus on the fact that this is the last time I will escort one of my children to 4 year preschool (or Pre-K as they call it here). I’ll just distract myself with this picture of him being “too cool for school.” Right before we walked out of the house he said to me, “it’s pretty bright out there mom. I think I’m going to need my shades.”   Yes, my boy, your future is very…