Oh! And another crazy question.

Why couldn't I lift my head up breathing in front crawl, rather than to the sides? My bf said to breathe every 3 strokes as I have too much air to get out (insert joke here) for 2 strokes, but then if I'm sighting a buoy on my left, for instance, I wouldn't always be looking to my left. Wouldn't lifting my head straight up be easier? Is that too weird? Will it screw up my arms on front crawl?