No, if they wanted a child, they should've known how to take care of their child or children.
All children have different needs. A Parenting class only teaches the basics of parenting. So if your child had turrets,or ADHD, parents still won't know how to take care of their child. So parents need to know the risk before they have a kid, and how to treat their child with support, and care in balance. So you choose, know the risks and learn,or take a class for a while, just to learn things that an ordinary child needs. Every child is unique and special in their own way. Parents need to know how to take care of their child in their own way. Such as needs or education.