Because they have children an excuse not to do it.I know i only have two one 8 month and a nealy 3 yr old .I try to have a tidy home VERY happy girl and boy no dirty washing or ironing and to look good for my hubby.I am tired at the end of the day but i want an good home happy and clean form my family.It such hard work now and again but don't you think it worth the effort.