Peter was a $70-$year$-$old widower who developed a serious illness and could no longer work or maintain his home. His sons, Craig and Neil, visited one day and each offered to move in and help him.

"You're my kids!" Peter protested angrily. "It's my job to watch out for you!"

"That was when we were kids, Dad," Neil said. "You and Mom did such a great job caring for us that we're able to help you now."

Craig added, $"$It doesn't matter who's mowing the lawn or paying the bills. You're our dad. Always. Let us be the caregivers, at least until you're better."

Peter became angrier and said, $$I will not have my kids taking care of me$.$ I$$ll find a way to make it work. Now both of you, please leave.$$

Based on the information given, the relationship between Peter and his sons could be described as destructive for which of the following reasons?