I feel that blockchain is here to stay but can't help thinking there might be a SLIGHT possibility that BTC wont get mainstream. In the UK, I don't know of one place that accepts BTC on the high street and I'm not a hermit.
I was filling the car up a few days ago and thought what it would be like to pay with BTC.
Maybe it will never be illegal in the UK or my government would have said so already but it may never become mainstream and ONLY niche.
The price we dream of for a BTC to be 5 figures is the day my mum has her own BTC account which she takes travelling and she 55 years old. Blockchain is staying but can it force its way into mainstream if given time. Will it happen or NOT. Is the fact that japan have adopted it and they are a developed country means that its ONLY a matter of time the west adopts it.
10-15 years is hard to imagine and so far down the road...
It wil go mainstream, in the sense that more people will use it than now.
Not sure if it would ever get 10% of world population for example, because we don't have a road map for that beyond LN, which is confusing to noobies anyway.... we will see.