As the parent of fraternal twins, I can say this was the biggest surprise. We have two absolutely and incredibly different children in one delivery.

I guess the other lessons learned were:

- as soon as you get comfortable with a routine, it changes

- they come into this world as their own people. You can guide them to find their strengths and weaknesses and give them tools to work with those, but it really is nature at the core and nurture only helps them to be better versions of who they intrinsically are