FYI: Companies such as Bitpay, InPay, Coinbase, Purse.IO process tens of thousands of normal people's "normal transactions" every month. Are you arguing that we don't need that ?
I am not in dispute about the existence of such companies.
Yes you are. Perhaps you don't realize that.
Normal shops are probably never gonna bother with accepting Bitcoin directly, the same as they will not bother with accepting VISA or Mastercard directly. That's what payment processors are for.
So basically, by saying that "Bitcoin shouldn't be used for normal transactions" you are actually saying that all of these companies should go out of business. (because Bitcoin shouldn't be used for buying coffee or some other ridiculous thing).
EDIT:
Anyway, that is absolutely ridiculous argument and I hope you understand that this argument has no power in this discussion.
Please skip to the next one.