Mine are 9, 7 and 5 and cry more than I think they should. I think our parenting has gone awry somewhat. There seems to be a rut where they are issued with an order, instruction and then they cry, or in the case of the 5yo kick off into a tantrum.
I am of the view that life should be much smoother than this and it should be possible to have a whole day, if not many days without a child crying, unless they are injured or hurt.
I welcome advice. It is very wearing.