Wallets for Bitcoin are much better than a personal debit card. The program in which you store your bitcoins, creating accounts for this, you can fully customize for yourself.
Yes for sure it is better to store all of your money in your bitcoin than having a card of a bank account as it will grow but it will give you very small profit, in banks money gives very small profit but the bitcoin investment is the largest profit ever, buy bitcoin now as price is not very high soon after holding in your wallet you will get very high profit, at a time you can easily use your bitcoin without going anywhere to cash it out. Bitcoin is very safe to hold it increase without any risk.