One reliable thing about physical cash is that unless it is torn or burnt, it rarely fails whereas an app on the phone might lag (when there’s patchy internet connection) or even fail. When that happens, and you are left without any other forms of payment and will be stranded. This can be especially problematic if you are traveling abroad or in smaller towns or villages with a lack of banking system or other payment options. As you are dependent on your phone for all your on-the-move transactions, losing it can prove to be a double whammy. Another drawback is that you need to keep your phone constantly charged. If the phone dies on you, and you’re all out of electrical plugs or power banks that can be a real headache.
Hopefully, this will help with some of your questions about e-wallets and give you a better understanding of this rising trend globally. If you haven’t jumped on the bandwagon yet, perhaps the above points can help you decide whether to pick up that phone and download an e-wallet.