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.
Many guys will argue with you. You may not use the banks to hold dollars: just place them anywhere and use them anytime. Bitcoin depends on many things, including the simplest stable work of the Internet.