~
I really hope that you are wrong about people's trust being the most important thing for Bitcoin. People's trust is the most important thing for a Ponzi scheme, which Bitcoin is not.
You underestimate people's nature, we need to believe that bitcoin is reliable to use it. It has been around for about 10 years, why would people trust it?
The most important thing for Bitcoin, in my opinion, is reducing transaction fees and increasing the number of transactions per second.
That's not important at this moment.
There are many cryptos with less transaction fees and much faster transactions but why do you think bitcoin is more popular/valuable?Bitcoin is more popular/valuable because its blockchain is much more secure than that of other alts. Many people opt to sacrifice a cupla bucks for security. But when BTC is fast and its transactions are cheap, who's gonna use other cryptos? Nobody, except for the criminals who will still want Monero and Zcash to hide their identities, but I'm sure all those "Private Cryptocurrencies" will be banned by most governments sooner or later.