[paranoidrobot]

> At least here in Australia the below situation would be very unenforceable

Even in Australia those clauses make it into contracts. It might be unenforceable, but that doesn't stop employers from putting it into their contracts, and it might not stop them from trying to enforce it anyway and making your life difficult.

I don't know how many people challenge it, but I've struck it out of several contracts over the years. Each time it's been met with surprise that I might object to it.

I'll agree to more narrowly targeted clauses for IP assignment (limited to work performed on company time and/or with company resources).

But I've also seen things utterly dumb non-compete clauses which would attempt to prevent me from doing any IT work for sometimes years. Also struck. Also likely unenforceable.

[sircastor]

> Each time it's been met with surprise that I might object to it.

I’ve never run across a situation where someone wanted to remove a clause from an employment agreement and the company was not utterly shocked that someone would not find the terms acceptable.

I generally think it’s a tactic to get the individual to accept the contract wholesale.