Why do all those pilots who are suspicious of GPS use as justification that it won't do everything - it doesn't have this bit of information, it doesn't have that".
Does your ILS system have all this, terrain avoidance, danger areas?
Of course not - your GPS is a tool and a good one at that, and it is in addition to the other means of navigation available to the pilot.
Stop thinking that everyone who uses GPS 1. never consults the map or does a plog and 2. only ever uses the GOTO button!