
"Can you are looking for to hold or trade and sell the Bitcoin, Firstly you should check the bitcoin is legal in your country."
In the world there are many countries with different type of crypto regulations.In some countries to hold of Bitcoin can get you to jail.
Otherwise in the other countries Bitcoin is used to purchasing,trade and pay taxes.
The usage of Bitcoin with regulations in various countries is shown in this map:

Souce-:https://coin.dance/poli/legality
✓The countries where Bitcoin is illegal or avoidance of Bitcoin.
The some countries in the world are actually,Banned Bitcoin for the use.Because of the decentralized nature of Bitcoin.The estimate of their government is ,Once they can allow Bitcoin,They have no any control on transaction of Bitcoin.And the crypto threat their current financial system,And the proper regulations are yet to be approved about crypto.
some of these countries are:
•Afghanistan
•Pakistan
•Algeria
•Bolivia
•Bangladesh
•The Republic of Macedonia
•Saudi Arabia
•Qatar
•Vanuatu
On the other hand the some countries have not fully banned Bitcoin and other cryptocurrency.
They just restricted for the use in such as trade,banks and other financial services providers are prohabited to dealing to exchange and other companies.
In some cases this type of countries have banned the crypto exchanges.

The some name's of this type of countries are:
•China
•India
•Ecuador
•Indonesia
•Morocco
•Zambia
•Nepal
•Egypt
•Samoa
✓The countries where the Bitcoin is legal.

Otherwise at least 112 countries ,Where Bitcoin and other crypto are recognized by law and are legal.
The countries like United States and Canada shows the positive attitude and friendly viewpoint about Bitcoin and other crypto.And their citizens are also used crypto and Bitcoin day to day life.
The following are some name of crypto friendly countries.
•Japan
•Gibraltar
•Malta
•Ukraine
•Switzerland
•The Netherlands
•Lithuania
•Estonia
•The United Kingdom
•Germany
•Bermuda
•Slovenia
•Singapore
•Georgia
•Belarus
•Hong Kong
✓The countries where crypto and Bitcoin are neither legal nor illegal.

In some countries you can Bitcoin is legal buy Bitcoin it is legal,but there are no clear rule or Government legal protection regarding to it's status.This countries are confused about crypto and at the time the countries have neutral position or they have taken wait-and-see approach.
This countries are:
•Albania
•Andorra
•Argentina
•Barbados
•Colombia
•French Guiana
•Gabon
•Jamaica
•Jordan
•Kazakhstan
•Kenya
•Kosovo
•Kyrgyzstan
•Malaysia
•The Maldives
•Mauritius
•Nigeria
•Panama
•Paraguay
•Peru
•Tunisia
•The United Arab Emirates
•Tanzania
•Uruguay

Scary about crackdown crypto market and inconsistency,And long time value crack effect on Bitcoin and other crypto.Therefore the many people trade by traditional system.
On other hand positive news is that growing number of acceptance of crypto and Bitcoin in crypto restricted countries.(Example-The China's president shows positive attitude about Bitcoin when Bitcoin is growing up).