the only challenge that i can think of which really matters is adoption. and that is not something you can fix, it is something that is fixed on its own with time.
as time goes by more people find out about bitcoin and more of them start using it. some are merchants and some are users and they all make the ecosystem grow.

I think national policy is the biggest challenge for bitcoin.
The second is the emergence of quantum computers, which in the future may be able to crack bitcoin's private keys.

Some of the challenges that a person must overcome is facing the truth that bitcoin's price will never stay the same and will definitely rise and fall from time to time. Another is that bitcoin can be earned easily but not considered "sure money". It is not preventable and the only way to face those challenges is to just research more about bitcoin to gain knowledge and accept the reality that they are risking their money in bitcoin

The biggest challenge for bitcoin holders is the frequent drop in value. If this continues probably many people will panic and dump their bitcoins and settle for a much better cryptocurrency. This is one of the biggest threat in the market. The only way for us to help bitcoin is to keep promoting bitcoins and to fight fake news which demoralize bitcoin holders especially newbies.

Being an active user of bitcoin has significant benefits and minimal struggles too. Maintaining the appropriate way of doing the business in every aspects is like a trial-and-error if you don't know what you are doing for. So in return, it might shut off your access to continue.

The biggest challenge that Bitcoin will be facing is the regulation of governments and those who spread FUDs. How to prevent it? no one can prevent it, because there are countries that don't want to about Bitcoin being a method of payment or make it legal currency. Another challenge is the volatility, as long as Bitcoin price are not stable, there will be only few businesses and services that will want to accept it as a payment. How we should we face those challenges? I don't think that Bitcoin will become a currency that is being widely used for buying goods (for now) because people will always think of Bitcoin as an investment instead of using it as a medium of payment and we have to accept that.

I can say "Patience" and "Time management" is the most challenging in bitcoin.You cant prevent them, you need to endure them. Why? If we have a lack of patience, you couldnt survive earning profit from BTC, and also without time management, it is hard to earn bitcoin, when, where, and how.

There are many challenges that we can encounter herein bitcoin world  like, how to be become more effective bitcoin user and how to perform our task smoothly.  As we can see there a lot of new policy in the forum like merit system, that we must to face it, because we are a member of this  forum, and for easy to adopt what really happened we need to accept whatever happened.

Challenges is always present in our daily life so be patient if we can encounter any challenges here in crypto world.

The common challenges I face as a bitcoin investor is tge stereotyping of people towards me. They think that because it came from the internet, I'm already an online scammer. They think that because bitcoin's value is unstable, it wouldn't have a future. Apart from this however, the things that makes me scratch my head the most is bitcoin's unstable value. It makes it hard for me to pick a time for me to reap what I earned.

First is that it is risky to go into. At times, it goes down but sometimes it bounces back. None of us know what will happen in this cryptocurrency and I think that is the biggest challenge every btc user faces.