"Harriett’s biggest expense has been the $50,000 or so a year (it varies) she has been shelling out to her two children – now in their mid-20s – to help them with their higher education. The corporation has paid this money out in dividends so it does not show up in Harriet’s monthly expenses. "

Biggest expense = The money has been dispersed to the kids and I don't think she can just ask the second child to contribute to education costs at this point without creating a deep rift in her family.