Is regulations among the key factors that affects the price of Bitcoin
Of course. Regulations affect many things. Institutions or individuals who will invest in Bitcoin make their investments within the framework of these regulations. There are many factors that can determine the Bitcoin price. These regulations may also include decisions that drive Bitcoin adoption. This can have a positive effect on the price. At the same time, we can see that the price decreases in the face of a negative regulation.
The investor can buy Bitcoin according to his own decision, but he decides by being affected by the events and regulations.
You have spoken well because regulations are the laws that govern us and influence our decisions. If bitcoin was banned in our country, many of us won't have invested in it because we won't want to disobey the laws of our country but because bitcoin isn't banned we're free to invest in it. The decision of the government through regulations affect the decision of institution investors to invest in Bitcoin or not as they too won't want to disobey the laws.
We have so many factors that affect the price of Bitcoin and regulation is one of them, we also have adoption as without adoption Bitcoin won't have value. Regulation isn't a key factor because Bitcoin can't be regulated directly but the exchanges that are centralized can be regulated.