Where I live I don't get to use Japanese unless I go out of my way to speak it, though I get a little practice using it thanks to some translation work I do. I'm still grateful for this skillset, and when I do go to Japan, it is immensely helpful and has really increased my enjoyment of Japan by orders of magnitude.
In Japan, you might get judged based on your appearance, but when you show that you have at least made an effort to speak their language, it breaks down a lot of barriers. BUT I can't say my experience as a caucasian foreigner would be the same as someone with a different ethnic background. I can't even say other white travelers will have the same experiences. I seem to be blessed; I love Japan more with each trip, and dive deeper into the culture, and it feels like my family just expands.
If you never have plans to visit Japan, that really limits how much you can use the language... maybe there's a local Japanese expat community you want to participate in, or maybe you just want to watch anime or Japanese movies in their native language, or play video games... otherwise it's just an interesting challenge, and if you like learning new languages, it's more fun to learn than English at least.
So, rather than asking whether you should study Japanese, you should tell us why you want to study Japanese. If you aren't excited about it, or would rather learn another language, you aren't going to have much success.