The situation you are talking about is Malaysia right now.

However, this thread is about WeChat pay, where the smallest hawker has a QR code for buyers to scan.

So if you open your mind wider, why do you think Wechatpay works in China, but not here?

In China, I can only imagine how do they manage the changes when thousands of people if not hundred buying stuff with them .. they might need to carry bags to the nearest banks

WeChat and Alipay in China does not command any transaction fees unless you are moving the cash into your bank account or withdrawing it. Basically most day to day transaction for customers and sellers are FOC.
If they banks here requires a transaction fee, It will die a natural death as many sellers will not be bearing the transaction fee and refusing to accept it. This makes the payment not popular to entice more people to opt for cashless payment.

What bags to the bank? This thread is about small hawkers, and cashless, and small amounts. What bags are you talking about?

WeChat and Alipay in China does not command any transaction fees unless you are moving the cash into your bank account or withdrawing it. Basically most day to day transaction for customers and sellers are FOC.
If they banks here requires a transaction fee, It will die a natural death as many sellers will not be bearing the transaction fee and refusing to accept it. This makes the payment not popular to entice more people to opt for cashless payment.

Bags as in notes received by the hawkers from their thousands of customer. Just look at the populations in China, theyight just don't have enough time to count and make changes.

That refers to your opinion in why China is a success but not here.

Yay indeed .. I wanted to try it out when I visited China previously but too bad I do not have the local bank card. Well, people say cash is king so I am one because no one in China use cash for payments.. lol
The biggest cons for Samsung pay is that it only targeting few people. Not everyone is using Samsung somewhat but it is a good start for Samsung.
Entry cost for cashless payment is good got small businesses. Vcash is offering 0.8% merchant fee for every transactions made on their infrastructure. Which is good...noore bulky machine. Question here, how do people do instalment plans going forward.. hmmm

So, news reporting that WeChat pay would soon make available in the Malaysian markets with ringgit transactions and that is going for real by 218. Their rival Alipay has also announced to launch the payment solutions in the country in the view making Malaysia as a gateway to expand to other ASEAN markets through the DFTZ.

Would you use them because of its convenience given the fact that Visa and MasterCard plastic offer some privileges like cash back, bonus to name a few.

Yes I will use them, since I do not to carry my wallet everywhere I go, all I need is a smart phone.

Yeah same here. It is really convenient with just the smart phone when implemented locally here in Malaysia.

looks like cashless era is not far 

WeChat and Alipay in China does not command any transaction fees unless you are moving the cash into your bank account or withdrawing it. Basically most day to day transaction for customers and sellers are FOC.
If they banks here requires a transaction fee, It will die a natural death as many sellers will not be bearing the transaction fee and refusing to accept it. This makes the payment not popular to entice more people to opt for cashless payment.

People in advanced country, like japan and Germany, they prefer using cash note.
This is matter of privacy

Think about it, to goto foreign country, like you visit Singapore, Thailand....you need to exchange the currency, money changer, earn % of the exchange.....you have to change RM to SGD, or keep Thai Baht notes..

In cashless...you just go the country and scan/pay, what you want to buy/spend stuff or pay hotel booking, all using smart phone....the exchange rate will calculate and all minimum charge without bank/money exchanger taking a fee.

The rate also can follow market pricing up to the latest exchange rate...when u scan