Bitcoins as such doesn't give much benefits to justify mass adoption.

However, it can gain mass adoption through its sidechains, tailored for different niche markets.
-one sidechain tailored for cup-of-coffee (a lot of non-secure, but easy and fast transactions)
-second sidechain tailored for black & gray market (complete anonimity and untracebility)
-third sidechain tailored for investment (slow but super-secure)
-fourth sidechain tailored for legal applications (wide range of smart contracts)
-fourth sidechain tailored for storing all kind of information
-etc etc etc

If so, we should pray for the success of Blockstream.