This is analogous to saying that everyone should have giant monster truck wheels on their cars.
It just doesn't work like that, mate.
I can understand not seeing a point in stretching only to smaller sizes though. Staying at a 10g would only limit options. You might as well just stay at a 14g piercing. Go big or go home. You really start to see options when you hit the 6g mark.
Slightly falling off topic; I don't mentally categorize someone as having 'stretched ears' unless they pass the 7/16 mark, so for me personally, it's 'pointless' until then. I'll notice your ears are stretched if you're a 6g or something, but it won't stick out in my mind. It just doesn't have the same effect until your lobes start to take on that shape.