People say and think that but it's not true and anyone can easily adapt.
The reason why left front became the standard (as sidepull brakes gained popularity in Europe) was because most riders are right handed and having the less powerful left hand control the more powerful front brake made for a better brake balance (or bias). Over the years brakes have become lighter in feel and levers better designed to actuate with less input to where it's not an issue any more.
It really doesn't matter which way you set up your front brakes but this old wog won't hesitate in tsk tsk'ing you for using a right front strictly from a style perspective. I also think it's safer in Oz to have a left front as most of our right turns require you to either signal and/or cut accross traffic and I'm much more comfortable knowing my left hand/front brake is at the ready.
I'll also add that whingers who want to replicate what's on their motor bikes can get stuffed. Bicycles came first.