Bitcoin will see much more acceptance in various industries and it will grow. This will help the cryptocurrency industry to grow and also users the freedom to spend without any financial institutions in the middle to convert them into fiat.
But people must take care and check before sending money to anybody or scanning a QR Code because nowadays, even being a legitimate business, they can be involved in a money laundering activity or any other illegal activities. So for example, say you deposited to any such place and in the future, in an investigation, you may face harassment by the tax department or some jurisdiction.
Also, you can be prone to data thieves which can turn out to lose more money of yours or any other harassment.