We can't rush things out because fiat is still the major currency that we need but it doesn't mean that crypto failed to breakthrough because there are already lots of developments and adoptions occurrence. We have to trust the process because even huge platforms and networks these days are already recognizing cryptocurrency.
Also the term break through is deceptive because bitcoins already is being used worldwide and even legal in some countries so the only thing that now remains is the adoption at shops and merchants which will take time because rushed adoption will also cause more scams because there are lots of ways a experienced crypto user can trick merchants like double spend and zero fees transactions.
The introduction of paypal accepting bitcoins might actually solve this problem because paypal is the biggest payment processor right now and if somehow bitcoin transactions are made through it, that would be plain awesome.
Shopping in stores will certainly be very closely watched, how later the price will drop dramatically or with fraud against it, it is still difficult to adopt because the government has not monitored it so online stores do not want to lose sight of this kind of risk, especially since the existence of bitcoin is still not fully legalized. therefore this adoption will continue over time, acceptance will make a breakthrough where all shopping stores will use the payment method with bitcoin.
Paypal accepts only 10% of cryptocurrency so this could be said on an experimental basis but it was seen in the CEO's tweet that this is doable and is in a more mature stage.