I can't just go home as it's a 2 hour round trip and by that time the store will be closed.
How the fuck can I access my bank (on my PC) when I am away from my PC? unless I use the cloud and isn't that a really bad idea?
send BTC to exchange or online wallet (coinbase, blockchain.info) ... in case of vacancy.
if you need, use a "withdraw" sequence to retrieve somes BTC from exchange to phone.
but ... storing BTC is more secure and fast than bank ... on a regular phone.
bitcoin software is not crappy release like usual app (baks app, game app).
i store 2500 USD on my phone with strong password and NIP for spend (android bitcoin wallet from schildbach).
banks are already dead from my point of view.