Eating alone is not only acceptable but a norm in Japan, so it’s an awesome place to do that, especially if that’s usually intimidating to you.
If you are traveling solo for the first time, the idea of sleeping in a hostel room can be daunting. In Japan, you can opt for a capsule hotel, which is very similar to a hostel, except that your bed space is much more confined, and your personal space is respected. Eating alone is not only acceptable but a norm in Japan, so it’s an awesome place to do that, especially if that’s usually intimidating to you.