Debit Card / M-Banking VS Cash

Okay,
we all already know that bank is so much helpful for us. There's a lot of benefit!
In this "internet era", there's a lot of online shop. Debit Card / M-banking makes us easier to do a long distance transaction. It's so useful, that you don't have to hide your money at the back of your pillow, or hide it in your pile of clothes and scared that someone will steal it from you right? But, can we use them anywhere?

Yes, maybe you think we can use it everywhere but the truth is ... it's not.
There's some place that don't even know about it, they just do a transaction with "CASH". Why? Because it's hard to find ATM, or signal to use m-banking.
Okay, let me give you an example.
There's somewhere outhere, that they live in a small country in Indonesia, don't even know about internet, they just use their phone for calling or messaging, so they can't use m-banking (or maybe don't know how to use it), and not only that, they bought something in a small shop. And we all know that small shop can't use debit card, right?
They think that CASH is the most important things for them, not debit card or m-banking.

"But, it's a small country! How about a city? I think we can use it wherever and whenever"
yes, you are right.
BUT
We can do a lot of transaction with debit card or m-banking, but let's choose a shop.
there's a lot of shop here in a city.
Huge one, medium one even small one.
maybe we can use debit card in a huge shop, like mall?
but how about the small one? we should do the transaction with cash tho.
so, no matter how modern it is, how useful it is, we can't use it anywhere (maybe for now).

event though debit card and m-banking is soooo sooooooo useful for me, I still need cash for my transaction tho :')
there's pros and cons for debit card / m-banking and cash right?
what do you think?
that's what I think about this topic, thank you for reading !

*sorry if there's a word or sentence which not pleased*
Xoxo,

Natasha Stefanie