Area Frequency boundaries.....
Firstly Australia is I believe the only country that publishes same.
If you remove the boundaries, the ATC frequency for best use would be in 'biscuit' located on the chart somewhere near the outlet. If you call on the wrong one, you get transferred.
There are many locations where VHF coverage on the nominated frequency is not available, but is available on another nearby or adjacent sector. Only local knowledge will tell you that. In those circumstances the boundaries are not required.
Any change must be subject to the appropriate education and life will go on and nobody will notice the difference
