Of course bitcoin can become the mainstream in the ten years that will come. If during this trip bitcoin has become the most valuable and most popular coin, it is not impossible that bitcoin will be better known in the next 10 years.
Yes, it will happen, especially if we all make everything to support Bitcoin. For at least, we must not sell this cryptocurrency but try to hold it for a year or two.
I think bitcoin will become a mainstream in crypto verry soon. Maybe it will not required 10 years to become the mainstream because bitcoin is really becoming more amazing and many people today really believe in bitcoin and it's amazing capability to give a huge return from our investment, this is really the most amazing coin in crypto market and every coin really depend on it.