Hi,
Though i would tell you my experience. I'm new to golf, been playing a few month and i play cross handed.
The reason I do it is because even though i'm right handed i play the drums left handed, meaning from the back of the kit i sit to the right. So when im playing the drums my left hand is playing the hats above my right hand on the snare drum. So when i started golf my arms just naturally fall with the left out further than the right and the cross handed grip works for me.
ive tried the traditional grip and i takes far more effort and i very rarely make a nice contact with the ball. Where as crossing my hands i have a better swing and am far more relaxed even just holding the club. I wanna take a few lessons but im sure the pro will want me to change my grip straight away but i dont see the point. I can drive pretty straight and about 170-200 yards so why change.
I was trying to adapt my grip by watching instructional vids and using what worked for me but ive since found out that guys like Josh Broadaway and John Gallagher are awkward like me so i'll be checking these guys out to see what i can do to improve my game.
A lot of instructional vids say get a grip that works for you and stick with it, and i will.