UniQlo UTMe! t-shirt - design your own t-shirt

I was bedridden for 2 weekends and decided to try an app that I stumbled across called UTMe! by Uniqlo. It's a design your own T-shirt app. I thought I would give it a try and show an unboxing of the t-shirts.
Q. Why so many shirts?
I got a few sizes to see which one would fit me, and then I got some for friends and family, and a few for me because I wanted more than one design. One for climbing and one for gaming.
Q. Is this only in Japan?
Anyone can get the app, but I'm not sure if the shirts are available worldwide. I think you might need a Japanese address/bank account (to get paid), and a credit card to make purchases. But if you have the app you can support the t-shirt designer by giving them a warm "heart" click to show your support.
Q. Can you design something for me?
If I have time, and can draw it maybe I can. Write in the comments what type of shirt you would like to see and if I get enough votes and can think of something good to draw I'll give it a go. PS. I can only draw cute-sy pictures.
Q. Do you often shop at Uniqlo?
I usually buy clothes from Uniqlo because their clothes fit me in Japan and the prices are reasonable, and love their cool t-shirts. The shirts also usually last a long long time.