Yeah right, try to buy in a supermarket or a restaurant. You can't wait 1h in a queue!

It won't happen, even if bitcoin success grows those use cases will still be out of its reach...unless it updates itself.

I was trying to discuss a fix, nobody discuses my design proposal, instead only say they don't need it...
ok fine!

It wouldn't so strange that tomorrow a new cryptocurrency arrives that gives you all that bitcoin does (it may start as a clone) and also gives you instant assured decentralized payments and your bitcoin suddenly is not the best available option.

Think a mixtere of ripple and bitcoin. That can happen inside bitcoin or ouside of it.
Which one do you prefer?

I personally think it's better inside than having to change cryptocurrency all over again.