The bank and the game are far less important than me retaining full control of a general-purpose computing device and sensor that I keep by my side for a majori

The bank and the game are far less important than me retaining full control of a general-purpose computing device and sensor that I keep by my side for a majority of the time and trust in the most intimate parts of my home. This is also a fact. If the bank and the game cannot function in this reality, then the only solution is for them to provide separate devices for me to interface with them.