Virtual cards are a safer and more secure way to buy things online, because no one can access them unless they have both your phone and a way to log in to your Dozens app.
They’re better for the environment because it can be difficult to recycle physical cards, and people often don’t use them, so those materials go to waste.
They can do everything a physical card can do, including shopping in-store using mobile payments. The only thing they can’t do is withdraw cash from an ATM.