1. Expense:
I've heard it's VERY expensive to live in Japan. How much money would you spend on a weeks worth of groceries?
Depends on your appetite and lifestyle (carnivore vs. vegetarian). Average range would be 30,000 to 60,000 yen per month. Look up the exchange rate yourself, since it changes hourly.
2. Older Generation:
I've heard old people in Japan dislike Americans, is this true?
Some do. Some don't.
3. Gyms:
If you live in Japan, is it easy to find a gym, and a weight room to work out in?
Depends on where in Japan. Bigger cities,yes.
4. School difficulty:
I have a friend who studied in England. He said it was VERY easy compared to USA. Has anyone here studied in America and Japan?
Not me. I have been teaching here though. High school and university. What exactly was your friend's experience? A 6-month homestay? Elementary school or high school or university?
Essentially, Japanese high schoolers have lots of work to do in classes, which are largely teacher-centered lectures. They also have club activities until 7 or 8pm, often every day. They study their brains out to pass rigorous college entrance exams. Once in college, they ease up tremendously, though, and work is often obtained based on name of their university, not their grades.
Look here for more background.
http://www.ed.gov/pubs/JapanCaseStudy/index.html
http://www1.doshisha.ac.jp/~kkitao/library/article/wca.htm
5. Japanese girls/women:
What are some differences (even if they're stereotypes) that you personally believe to exist between American girls, and Japanese girls? How are Japanese girls different? Socially? Sexually?
I assume you mean girls of dating age...?
Socially very close to each other. Shy around boys. Immature for their age (think 5 years younger mentally). Interested in fashion. Addicted to their cell phones.
6. White people:
My old roommate was from Japan, he thinks I'll like it very much, and that I'd be well received, because "you are very social" and "in Japan, only we have Japanese people, so white people are different, and interesting".
Your friend's remark about ONLY having Japanese people is pretty narrow-minded and racist, even if he doesn't know it. The population of Japan's foreigners is about 2.5% of the total. More than half of that group is Japan-born Koreans and Chinese. Next comes Brazilians. We caucasians fall far down the list. Some are "different". Some are "interesting". Depends on where you live.
7. I'm sorry, I HAVE to ask this, I can't pretend I don't care. Penis size
Don't care.
Think with your head and heart.
8. GMO's:
Does Japan use genetically modified orgamsims? Genetically engineered food? It's a big subject in American and Europe right now.
Japan is very careful about not using GMOs. That doesn't mean things don't slip by, but that can be said everywhere.
Japan's legislation on labeling of genetically engineered foods
There have been scams in Japan recently about NON-GMO products, so don't assume they are safe, either. Scams have included purposely mislabeling foods as to their content (certain meats instead of the meats they should have contained) or changing the expiration dates. With a few exceptions (like the Snow Brand food poisoning scandal), none of these have resulted in illness or death, but I think the Japanese peole are getting really ticked off (I know I am!) about all of these scams, many from reputable companies, some of which have been going on for years.
9. Recreation by age group:
I'm 24, what do people around my age like to do for fun? Also, if I were studying at a Japanese university, would I be rather old?
Again, think 3-5 years younger for mentality, and consider rural vs. urban environments. People in their early 20s will drink, go to karaoke, talk endlessly on their cell phones, spend endless hours at home playing computer games, eat out, skateboard, etc. Realize, too, that people 24 years old have just graduated from college, so they are probably heavily involved in work, which means they will feel an obligation to stay until the late-working (or late-staying) boss goes home, even if they have no work to do.
If you come here for university, yes, you will be older than most students, but that's the same thing if you started school now in your home country, isn't it?