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Once people understand what Steem can actually do. It will not take 10 years.

Not many people knew what to do with Bitcoin for the first 5 years. Now we have at least some people that understand that blockchains are the future of just about every area of life that requires zero trust.

Steem is a good contender for mass adoption. Bitcoin still has first mover advantage but as people become aware of alternative options this may change.

STEEM is the first social media project in blockchain technology and will probably be with him as with Bitcoin: in his field he will always be king first.

This is also very true. Steem does have first mover advantage and as we build out SMT's into other websites more and more people will become aware that they really should be getting paid for their contributions to these old web 2 platforms. @astromaniac