"Parental guilt" refers to the feeling of remorse or self-blame that parents experience when they believe they have made mistakes or failed in their responsibilities towards their children. Full definition
It can also help ease your feelings of parental guilt that can be caused by needing to neglect your more stable children in favor of caring for their troubled sibling. (sundancecanyonacademy.com)
Many parents already feel parental guilt for not spending enough time with their child. (verywellfamily.com)