I always thought that the personality depended on being 1st or 2nd child, a boy or girl... But talking to my friends, not so much! Some of them have their eldest son with similar personality trends as Josefine or their youngest daughter being similar to Kaio. Which just reinforces that there is no standard rules about raising kids and you just need to do the best you possibly can at the circumstances you are in!
We all love our kids dearly and are trying, to our full potential, make them great human beings, but it does not always go perfect and there are lots of challenges, but what is important is ensuring their happiness, building strong ethics and values but certainly, also have fun while making them these awesome people they'll become!