Shinto or the way of the gods, has no official doctrine and is the only religion native to Japan and does not really exist outside of Japan, Jinja (or a Shinto shrine) exist nearly exclusively in Japan thus making worship of the kami's who reside in them difficult with out being able to visit, there are portable shrines you can by buy but they are a mere extension of the kami with the exception of Inari who can multiply himself but good luck getting one, they don't like to give them to gaijin >.<. Most Japanese practice Shinto rituals i.e purification or cary o-mamori but they do not consider themselves "religious" or even Shinto for that matter. Hope this helped!
P.S. it's any one not aney once is a typo twice makes me want to point it out