Doors with handles placed for right handed, driving on the right <here in US at least>, Walkways placed for right hand way, numerals on keyboard placed on right side, most computer stations situated for righties, etc etc...most is all about conforming to the right handed or 'right of way'
Actually, my parents protested the thought at first because the actual art of handwriting gave me such pain and I was being graded on the perfection of my handwriting in which this teacher had changed it to her liking, etc etc
However, after considering and communicating with previous teacher regarding the right of way in the world, the fact that I could actually do it and just needed to master it rather than switch hit...they gave in and figured on giving it a try. It all worked out in the end...I think