A good friend of mine wrote on Facebook the other day that childless people don't deserve to say their tired as they "don't know what tired is without having a child" and if we want to know we need to "pop out a kid and find out how tired you will be"

This really bugged me for two reasons.

1 - she knows many people, including myself, who have had miscarriages and fertility issues so it isn't that easy to "pop out a kid" for most of us.

2 - tiredness is relative! Everyone is allowed to express that they are tired. Kids are not the only reason for it!