You can do all things with a browser and a card, yes.
I'm assuming that most people will carry the card with them anyway.
I'm assuming that most people will carry the card with them anyway.
Leaving and coming back home and only have to mentally track one object that I can't forget is great. If it breaks, I'll temporarily use cards or physical money until I get a new phone and install everything again.
"Use a card" is not really a good alternative for those that prefer not to use them. Sure it works for you, but not everyone has your preferences of walking around with a wallet.