Just did a quick search there.
There seems to be a lot of southpaws playing right handed and finding it a constant struggle. Never quite feels right for many of them.
Best advice I saw in this regard was "Do what feels right for you." and don't even consider buying a left handed fiddle until your skills are developed to the point that you are aiming to get the best tone possible out of the instrument.
Other articles are all over the map but the biggest culprits that I can see are teachers who can't teach left handed. So they push the students to learn right handed.