Adsactly, while I agree with you on the principles of your post, I think it's irresponsible of you to give this kind of pitch for Bitcoin with its existing technical issues. The last graphic on this post is extremely misleading and here's why:
- Bitcoin is no longer easily transactable
While it used to be relatively quick and cheap to send a Bitcoin transaction, today the median Bitcoin transaction fee is around $10. For the example given of using a Bitcoin wallet at the grocery store, if you just wanted a $1 candy bar it would end up costing $11. Additionally, you may wait up to hours at the store waiting for your transaction to confirm because of the limited processing ability of the Bitcoin network. This is a huge problem for the currency and the main reason it won't scale to this proportion.
- Bitcoin is not as decentralized as some other cryptocurrencies
Bitcoin mining is almost exclusively controlled by a handful of large mining pools. Regular users cannot compete with mining new bitcoins, so using Bitcoin legitimizes the oligopoly of mega-miners controlling the entirety of the new supply of bitcoin.
- Bitcoin's mining is extremely wasteful
The power burned by the bitcoin network in 2 seconds could power your house for two years, and the power burned doesn't achieve anything productive in terms of making the network faster.
- Holders of Bitcoin are not rewarded for holding it
The biggest flaw in my opinion, is that holders and users are not rewarded for using the network. It is YOU, the user, that decides which crypto is worth the most, not the market or the banks or the first users. And generally speaking, a currency/network that gives you some kind of reward for holding it IS a step up from Bitcoin, where the rewards for holding it come OUTSIDE of the network.
In conclusion, if you think these points are sensible, check out some of the Proof-of-Stake projects coming out in 2018 which will attempt to address these significant problems and bring further blockchain progress and capabilities to the world.