Having children is like ...

Having children is like entertaining tourists who have come to visit your country. You're always looking for new entertaining things to thrill them, exciting adventures and experiences. You're always afraid they'll get bored and you constantly want them to be happy and occupied. You show them around, point things out to them and tell them about anything they want to know, making sure to make your stories animated, lively and fascinating.

Normal tourists eventually go back home to their countries. These tourists, however, are here to stay.