Zucchini Zaytsev

Can someone link me? Either I am that dumb that I can't find it, ooooor...

A good portion of th stores I would like to shop at are in lands that have a higher maturity rating. After relentlessly searching and asking, I was told to go into my preferences and adjust it there. It's not happening whatsoever. It's just displaying that I can view PG things. Any help? Am I completely missing something here?