Bitcoin acceptability is very high and it is increasing day by day.
I don't know of any restaurants, grocery stores, clothes shops etc... in my city, accepting btc.
Institutions don't accept btc either as payment method.
Probably I misunderstand what you mean by acceptability.
There are some online shop and physical shop in various country that accept bitcoin but it is not known world wide locals knows about it, if you search there is a list of it.
bitcoin can never be as good as gold and fiat and that is a fact, the price can blow off the roof in the end it will be converted to fiat.