I know what you mean.... For a place like HK, cash is still necessary to have with you at all times... Seriously, I never bring cash with me in mainland China or North America.... AliPay/WeChat Pay/Apple Pay got me covered. I do still bring one credit card with me whenever I go out in North America (not in mainland china) and that's about it.... Dont even carry my ATM debit card anymore....
Well it's nice to have friends when and where you travel. Also if your phone was stolen then I assume your wallet with your cash and/or CCs, debit cards, and the like could also be stolen. Another move while traveling is to leave one credit card and/or debit card in a less obvious place that would be less likely to be stolen in the nearly worst case scenario you can conjure up, but if you never use it you also might forget it. You win some and you lose some.
Anyway, I don't like physical cash, but I like cash equivalents in my accounts that I just view digitally without needing to actually touch dirty physical cash. However, I choose to live in HK, and I understand cash is still useful for the life I want to live in HK. Choices, yay!
That would be a pretty bad assumption. Phones tend to be lost a lot more frequently than wallets. Cash also keeps working if it falls in a puddle, or is smashed into a pavement, or if it's battery dies etc.
Pointlessly foolish in my view to have zero other options of payment than a phone.
Cash has always been more fungible than any other commodity during my entire life, unlikely to change during the rest of it.
I did say "could". No plan is foolproof and they all I believe depend on your priorities.
Lost and/or broken =/= stolen in my book, but okay.
I also didn't argue that doing everything via your phone is the way to go. I think having at least one physical credit card is useful, and my previous argument was to also have at least one credit card or debit card not on you, but accessible. I'd rather not spell out all the possible ways you could arrange that, but I don't feel creativity would hurt in such a scenario. Having a backup that would be extremely unlikely to be stolen at the same time as your regular wallet and/or phone is my suggestion.
Some people love physical cash. In HK I still feel it's king, but it doesn't mean I have to like it. I choose to deal with it, but I also have experienced what feels like the future, but it's just not evenly distributed yet.