Thanks for your help with everything!

That is true as an established network, Bitcoin is definitely light years ahead of any other crypto in terms of adoption hence why it'll be around for a long time. Conversely, with such a big network, I don't really foresee it becoming an everyday currency due to coordination problems. It will probably still be great for large sum settlements but newer coins will have the advantage of a lighter and more flexible architecture. With that being said, it need not necessarily be based on the original btc chain as there are very interesting unproven architectures coming up which might scale better as an everyday currency (DACs, hashgraphs, etc)

I think Steem is an amazing POC of what can be built on top of blockchain technologies but has major difficulties with scaling outside the platform which is something BAT does quite well. As you mentioned, there are no answers for that at the moment but the new projects coming out are definitely exciting to follow