Why not inherit from List?

Question

When planning out my programs, I often start with a chain of thought like so:

A football team is just a list of football players. Therefore, I should

Answer 1

Problems with serializing

One aspect is missing. Classes that inherit from List<> can't be serialized correctly using XmlSerializer. In that case DataContractSerializer must be used instead, or an own serializing implementation is needed.

public class DemoList : List
{
    // using XmlSerializer this properties won't be seralized:
    string AnyPropertyInDerivedFromList { get; set; }     
}

public class Demo
{
    // this properties will be seralized
    string AnyPropetyInDemo { get; set; }  
}

Further reading: When a class is inherited from List<>, XmlSerializer doesn't serialize other attributes