My wife and I are loving grandparents and love spending time with ouf son and his family. My daughter in law works part time and has childcare and my wife who also works part time often helps out. We are due to retire this year and have lots of plans especially travel. Problem is DIL wants to work full time and has more or less presumed we will have children 2 days per week. However we dont want to commit. We have worked hard and want to be able to have freedom to book a week in the sun and go the next day. We would of course help if we are at home but we want to live our own lives and have freedom. Her own parents never have the kids and only visit sporadically (and only live 6 miles away) and son and dil think they are wonderful but never ask them to babysit for reasons never explained. Are we being unfair?