Well, before we jump to the conclusion that all of the children have nannies, or that they are all royal, let’s take a look at who they are:
Kate’s Bridesmaids
Kate’s bridesmaids are all children, which is traditional for British royal weddings. Prince William’s mother, Princess Diana, chose one of her preschool students as a bridesmaid.
Kate’s bridesmaids will be Lady Louise Windsor, age 7. Louise is the daughter of Prince William’s Uncle, Prince Andrew, and his wife Sophie. Unlike some royal children, Lady Louise has had a low profile and is not often seen.
Another bridesmaid will be 8-year-old Margarita Armstrong-Jones, daughter of Viscount and Viscountess Linley. Margarita is the only granddaughter of the late Princess Margaret, the current queen’s sister. Margarita’s aunt Sarah served as a bridesmaid in Prince Charles and Princess Diana’s 1981 wedding.
Grace van Cutsem, age 3, will be a bridesmaid as well. She is a goddaughter of Prince William, and her father, Hugh van Cutsem, is a close friend of Prince William and Prince Harry.
Another 3-year-old, Eliza Lopes, will round out the bridesmaid roster. With these little ones, let’s hope there are plenty of helpers around. Eliza’s father is Andrew Parker Bowles, son of Prince Charles’s current wife Camilla.
Prince William’s Page Boys
For his page boys (here in the US we call them groomsmen), William has chosen William Lowther-Pinkerton, age 10, and Tom Pettifer, who is 8.
William (“Billy”) Lowther-Pinkerton is the son of William’s private secretary and friend, Jamie Lowther-Pinkerton.
Tom Pettifer is the son of William’s beloved former nanny, Tiggy Legge-Bourke, and is William’s godchild as well. Source
I feel that @BarnacleBill has the answer you may be looking for. While I don’t have children, I was one once. Occasionally, Dad would take me to work. It was looked upon as a treat because he would buy me an ice cream in the cafeteria before we left. Please understand that it wasn’t set up as a bribe to behave well; in fact, the alone time with Dad was reward enough.