it is mostly digitalization though not just bitcoin. for example when we use our bank cards (debit cards?) instead of cash that is exactly what you mean and it has nothing to do with bitcoin. the problem is people still continue to use cash so it won't solve this unless it is a 100% removal of any usage of cash which is impossible. at least for many years.
Agreed, but adoption of Bitcoin will reduce "Cash" on your premises and this will reduce cash transports. If you were a robber and you had to chose a target between a merchant that are cash only and another merchant that has a "Bitcoin accepted here" sticker in the window, which one will you target?
The goal is to eventually get rid of cash, but for now, the reduction of the use of cash will be our first step towards a cashless financial system.
It is even more practical and safe for the consumer, because a stolen debit card & pin or credit card will destroy your Bank balance and even place you in a situation where your credit card balance is maxed out. When you use Bitcoin, you can deposit a small amount into your phone for the day and only that can be stolen, when a robber gets hold of your phone.
The rest of your bitcoins can be stored in cold storage or paper wallets in another safe location or hardware device.