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Similar to people not complaining when banks are closed during weekends, they will always find a way when bitcoin's blockchain transaction capacity is not enough, but they won't give up on bitcoin, just like they won't give up on gold even it has terrible transaction capability
To me, Bitcoin is a very specialized and high-powered asset. It is actually even more cumbersome to use that precious metals in some respects, but this is mostly and artifact of the security precautions I choose to take. And again, I choose to do so because of the high value I place on this asset.
The various lags, costs, and inconvenience of using the system in a autonomous ways which are native to the system are, to me, part of the deal and have never bothered me excessively. The real problems I've had are on conversion to and from the fiat system, and these are almost exclusively caused by roadblocks which are a specific feature of the fiat solutions. XT and it's ilk are dead-set on importing these same problems into the Bitcoin system itself. No thanks.
Only a fraction of the world's souls are inclined to treat Bitcoin as I do personally. That is fine in my mind because there are 7,000,000,000 or so of us. If 0.1% of us are in my category, that is still a very large pool, and one which is tipped toward the economically more 'critical' so to speak. Importantly, anyone can use the amazing power of Bitcoin to build sub-systems which provide the 'PayPal experience' to their less rigorous brethren, but in a way which is much safer than what PayPal/VISA/etc can/does achieve.