It took about 10 years for big companies to jump on the whole 'internet thing' and then even longer for e-commerce. My guess is they'll take to it a little faster now that the world is more comfortable with computers but I don't expect them to just jump on it.
The internet was kind of a no brainer. There was nothing to lose by getting on there at the time.
BTC needs to reach the no brainer level too before something similar happens. I dunno what'll get it there but maybe we'll find out in the next few years.
Time need to pass infrastructure mus grow. Internet and mobile phones weren't the thing right away either. Internet was present in 80s. in mid 90s. it was global network but it reached full adoption in 2000s.
I think bitcoiner are really impatient about this mainstream adoption bitcoin is not even 10 years old now, give it time.