Neonchameleon
Legend
Your DM may allow you to Mage Hand a door open but the description of the spell tells what it can do. The spell can lift and move objects that weighs a certain amount. It says nothing about opening doors.
If my DM allows me to Mage Hand a door when I am casting Open/Close at it and quoting the relevant part of the Open/Close text, I wonder why he's looking at the wrong spell. And if my DM doesn't allow me to open a door with the Open/Close spell I wonder what the point of that spell existing is.
And this is a serious problem with wizards. There is an entire kitchen sink full of spells and what one spell can't do another probably can.