First day of school

Today was their first day of school. Such a milestone! (In Belgium kids can start at 2.5 years old already.)
I am pretty sure I was more nervous than anyone there.
Boys did absolutely great, but the first thing they said when we came to pick them up:
‘Mommy, I want to sleep.’ Luckily milk and cookies were also good.
Poor guys. This was just one day. Next week will be their first full week: they will be utterly exhausted.