Increase the resizing area.. at four corners.. of a window

At four corners of any window, we use our cursor to resize that window.. now that corner area ( i don what u will call that technically) is too small to handle.. it requires more than a little effort to capture and click tat area with the mouse and drag it..
Its very hard at times...
If we could increase that area's size a little bit. it will be comfortable for new computer users (who struggle at first to handle the mouse...)

after all ubuntu should be good for beginners.... :-)