Bitcoin banking is more secure than normal banking, because you are the only one that has access to your personal wallet but in normal banking customer cares can login into your bank account without you're notice and use your money for any kind of businesses.bitcoin banking is more reliable than normal banking because money that is in your normal banking can be deducted or withdrawal without you're notice but that can not happen in Bitcoin banking everything happens with your authorization.
Nothing else is more secure than Bitcoin banking imagine having a huge amount of Bitcoin stored in a Nano hardware wallet anonymously compared to saving it in a bank as a fiat where some fraudulent bank officials might reveal some secret information related to the owner to scammers especially in third world countries where corruption thrives the life owner of the huge fiat saved in the bank might be at risk probably his secret might have been revealed to kidnappers who will want a share out of the savings, personally all my funds are in form of crypto stored in my wallet whenever I needed some fiat I will initiate a P2P transaction in Binance to fiat.
Bitcoin is even more secure than that as a hardware wallet is a clear sign that you are storing some form of cryptocurrency and that you are holder putting you at risk, however bitcoin can be stored in so many ways that are inconspicuous, one way to do this especially if you are traveling is to simply remember your seed words, while this is not an appropriate method to store your coins long term as humans are forgetful by nature, it is a good way to keep your coins with you when you travel while carrying no evidence this is the case.