This is information for IT people, and you're treating it like it's for consumers. Consumers will only ever know about Windows 10 Home. The other options are important because:
Windows 10 Enterprise costs roughly ten times as much.
Windows 10 Education is the discounted version that they sell to schools (Apple has a similar program, they just don't tell you about it.)
Windows 10 Mobile because, well...
Windows 10 Mobile Enterprise because, again, they want to make money.
Windows is one of the top 5 most profitable software products in the world. Trust that they know how to make money.
Windows 10 Enterprise costs roughly ten times as much.
Windows 10 Education is the discounted version that they sell to schools (Apple has a similar program, they just don't tell you about it.)
Windows 10 Mobile because, well...
Windows 10 Mobile Enterprise because, again, they want to make money.
Windows is one of the top 5 most profitable software products in the world. Trust that they know how to make money.