How can the Blockchain help in creating technology for virtual wallet?

I had a chance to meet with someone who is working on Fin Tech.

blockchain wallet is akin to the importance of having an account with a bank. It’s almost, if not the same thing. One of its importance is that it allows you to manage two cryptocurrencies. That is, you can manage your balances of your bitcoin and ethereum cryptocurrencies together smoothly.

Another importance of blockchain wallet is that it gives you the ability to buy or sell cryptocurrencies swiftly and without much stress. All you need to do is to create an account with blockchain wallet and begin to explore its amazing benefits.
Since the rise of cryptocurrency and its amazing growth, blockchain wallet has been an important and reliable wallet for the storing of cryptocurrencies for transactions amongst other crypto-members.

For example, in 2020 Olympics coming in Japan, the Olympic committee decides that they will be using Blockchain virtual wallet for game tickets, food transactions