Is it tricky to get a card in a bank and then open an account in a securities company?

Is it okay to do this part-time job? Will it damage your reputation in the future if you don't use this account after opening an account in a securities company? Like a bank loan or something.

No ~ it's just that if you want to trade stocks in the future but don't want to work in this brokerage firm, it may be a bit troublesome to transfer accounts, which has nothing to do with the bank.