I still believe that Bitcoin is the future of blockchain payment ,
It is still upgrading and adopting to the huge number of people using it.
Just take a look back in 2017 when it is being pump due to the huge number of investors getting in,
The transaction was huge so there was so many delays but now that the system have adopted it is back to normal.

There is few ways to train a dog

Some of the most effective are positive reinforcement and becoming the alpha male.

With positive reinforcement that dog becomes "willing" to do as you ask. Chances are it will never trigger to bite you even if you piss it off a lot.
With scolding and negative reinforcement you become the alpha male. The dog may snap at anytime, they feel forced to listen to you out of fear. Sometimes that fear is overcome by their anger.

Take a look at the monkey world or gorilla world or chimp world or walrus`s.  The alpha male will scold the other beta males for trying to sneak behind and do the deed with his wives. No matter how many times the alpha beats the betas or omegas. They will find a sneakier way to do the deed with the alpha males wife.

The same goes for our prison system, they should be rehabilitation centers for the most part. The prisoners do not learn the lesson for the most part, they have been scolded, when they get out they just find sneaker ways to do crime. Some do self reflect and do become better people but for the most part repeat offenders is common. They don`t know how to blame themselves, To improve upon their own character, they rather just ask for forgiveness. Oh no big deal I killed 2 people and served my time, please forgive me "Deity name here"... and they go do it again because they feel that time was the justice. Rather than being rehabilitated, while serving the time in prison.  Now I am not saying asking for forgiveness is a bad thing, but using it as a excuse to cleanse your blockchain it`s a imaginary fork in your chain created by most religions, trust me that blockchain is there, those skeletons in your closet are not hidden, you need to be able to live with those skeletons next to you in the same room to achieve victory, it is how you become better, from falling and getting back up, how did we all learn to ride a bike? You yourself must first be able to scold yourself and realize that actions you made or thoughts you had were wrong and forgive yourself and not try but do your best not to do whatever you felt was wrong again.

Bitcoin still has a bright future for the blockchain payment although many other coins claim they can do better than bitcoin.
But the truth, they are still following behind bitcoin, and they cannot compete with bitcoin.
There is a matter of time for bitcoin to shake the finance and remittance system of the world and when the time it comes, nobody will doubt the blockchain system because blockchain can bring something better for us.
The fee of the transaction is not too big depends on the amount of the money you want to sent and if you want to send a small amount, then maybe using the lightning network will help you.

Bitcoin just paved the way that can greatly change the current financial system we are having. I may not believe that soon fiat money can be totally replaced as that can be impossible not unless we will have one global government and that government will solely adopt Bitcoin but I know with the underlying technology it is using there will be more and more innovations that people can enjoy. The most important for now is that Bitcoin is evolving and that people have a choice. Besides, Bitcoin is still young so we can expect more and more developments with this as years go by. The Bitcoin saga is ongoing and it is a good feeling to be a part of it...

I would not want to jump ahead of the game and say bitcoin is the future but i say blockchain technology and cryptocurrencies are the future. Bitcoin be the pioneering factor but may not be the one to carry it through. We can only hope that in the near future cryptocurrencies are finally approved by governments to be used as another payment method.

Maybe it's time for a hybrid solution?
Some alts, and projects working without a coin, that can eventually become the second layer extending the capabilities of Bitcoin.
Elastos, Ethereum (Wrapped Bitcoin), VeriBlock, Rootstock, and Blockstack, to name a few.
These projects could confirm the domination of Bitcoin, borrowing from it the features that they themselves cannot have.
Since they always have to sacrifice some of the benefits of decentralization on the altar of scalability.

In my opinion working together without a coin to develop a hybrid solution to bolster the use of bitcoin is something that will never happen.. The crypto space of today has too much CEOs who know nothing about working as a team but are concerned with making millions of dollars from their innovations. I think if ethereum wanted to be the solution, the ethereum team could have established payment network and done tremendously well but the team chose to distance or restrict itself to financial and remittance solutions.. 

These improvements are indeed needed, and they can be done as the time goes by. The possibility of making improvements only gives more power to bitcoin in the crypto space if compared to altcoins. I believe btc isn't only the precursor, but also the future of crypto currency.
Altcoins can have interesting and useful features, as eth, but they aren't enough to stop bitcoin dominance.

I think bitcoin is the future because it serves as an indicator for other coins too. Bitcoin is the king of cryptocurrency and will still remain that. No coin can replace that. Aside that its also growing massively.