Furthermore, copyright protects only the expression, not the idea - reimplementing the same idea with "different words" has always been permitted under copyright law (patents may protect the idea, though).
Of course, the fact that it would lack copyright protection it doesn't implythat you have to do something with the code for management of your kid's schedules, just that if someone else somehow legally gets hold of it, the law won't prevent them from making and distributing copies or derived work.
Furthermore, copyright protects only the expression, not the idea - reimplementing the same idea with "different words" has always been permitted under copyright law (patents may protect the idea, though).
Of course, the fact that it would lack copyright protection it doesn't implythat you have to do something with the code for management of your kid's schedules, just that if someone else somehow legally gets hold of it, the law won't prevent them from making and distributing copies or derived work.