Japanese postal post offices also have banks, which are used by many citizens.It is very convenient because there are banks all over Japan, and they are often used for work and various transactions.
I also use them, but I felt that the paper passbooks were a nuisance.I found out that post office banks are now online as well.You don't need a bankbook, and you can check your credit balance, make transfers, etc. online.
I immediately applied for it and was able to get rid of my bankbook.It's a small thing, but every little bit helps you become a minimalist.
It feels great, and I'm glad I did it!