They say they'll transfer their salary to someone else's account. Do I really have to open my own account?

In principle, salaries should be paid directly to the worker. If you want to pay by bank account, the principle is to use an account in your own name, and if you want to deposit into someone else's account, ask 1350. If you don't have a bankbook, you can receive it directly in cash, but be sure to leave documents showing the amount and date received. Bank deposit records become important evidence if salary issues arise later.