Those who know me will know that I am always very firm with parents about what is acceptable and I never pander to them. I have one parent who has not followed rules around this pandemic so I have withdrawn her place for the time being. She argued with me but I told her that it is my responsibility to keep the staff and children safe and I have introduced procedures to do so but I am not meeting my obligation if I knowingly allow a person who is flouting guidelines to come into the setting. However much the child benefits from nursery, you have to put the safety of those who are sticking to the rules and the safety of you, your family and your staff team first. If he only comes one a day a week, he isn't going to miss so much - many children have been out of school and nursery on and off since last March.