Yup, seen this with kids on windows. If an icon is on the desktop, then it requires a double click. If it is added to the task bar, then it is a single click.

Yup, seen this with kids on windows. If an icon is on the desktop, then it requires a double click. If it is added to the task bar, then it is a single click. I understand the reasoning for the distinction, but it is not intuitive at all.