Banknote and Digital Currency {Bitcoin} are all meant to buy things both in physical shops and online vendors.
Yeah, that's how it was originally intended. But something went wrong.
People began to use bitcoin as a means of investment, and not as a means of payment.
And countries are trying to adapt to the adoption of the digital currency upon all the restrictions many had laid on it but seen the benefits of it, some lift up the ban.
So, I’ll ask for details in the highlighted text.
Dollar does devalue bitcoin so the price of things will not be influenced by dollar anymore.
How does the dollar devalue a bitcoin? People themselves devalue bitcoin with their sell orders. The more sales, the more supply, the lower the price. This is a classic.
The dollar is still the yardstick for assessing the value of things. All over the world. Even within your and any other country. Even when the price tag is written in your national currency. Because any other currency is a repainted dollar.
In my own understanding if bitcoin is adopted as a legal tender in my country the cost of living will reduce.
Again the same question - how? The cost of living can be affected by an improvement in the country's economy. You idealize bitcoin and see it as a solution to everyone's financial problems.
Dollar is just playing with the Banknote in my country.
So this is not a dollar problem, but a problem of the banknote in your country, which is weak due to a weak economy and poor management of the financial sector. Don't look for the source of problems outside your country (in the dollar), for it is within the country.