I checked with school and it is okay to send bear into school on his own.
A lot of the parents already do this, but I do not want to have a telling-off from the headteacher and thought I had better play safe. Bear can be there in literally two minutes and doesn't actually cross a road. I think he's fine. He definitely thinks he's fine. I breathed a sigh of relief that the school think he's fine. The pick up/drop off was very hard on my leg.
This morning I stood at the door and watched bear hurtle down the street. He was fine. He used to forget my existence as soon as we got within ten yards of the school gate. Now he forgets my existence as he leaves the house. I think I've done something right.
Thank you for all the good wishes. I really appreciate the hugs - it's helped!