It is the same as those who are not illiterate but the thing is that these people can't take advantage of the benefits Bitcoin offers.  To get those benefits, these people (illiterate) need a helping hand.  They need another person who will make them understand by explaining Bitcoin.  But they should be careful because being unable to read and write is often exploited by greedy people.

The term "illiterate" is, in my opinion, unsuitable for the type of question you are posing. Perhaps you are preferring those who are ignorant or uninitiated about cryptocurrency?
First off, since cryptocurrency is new to them, some people might not believe it at first, especially those who do not know about it. However, if they are aware of what it is and how it can impact and transform their lives, perhaps they will be interested in finding out more information about these cryptocurrencies. If there are people eager to tell you how the crypto world is going, I believe it will enable them to sharpen their understanding even more. Perhaps they won't be left behind, given that we are dealing with concepts from the human race, both present and future. I think it takes a while for people to come to terms with the fact that cryptos exist and that we can comprehend them.

There's no benefit. It is better for illiterate people to be taught to read first. In my opinion, it is unreasonable for anyone to think that Bitcoin can be an investment for those who are illiterate. Meanwhile, even normal people have a big risk, especially illiterate people will have difficulty finding technical and fundamental analysis about Bitcoin. Their risk would be greater than someone who can read and I don't think it's a good option for them. I know bitcoin is a good technology but not all good things are accepted in all circles

Bitcoin will give them financial freedom. Actually, they are the best holder of Bitcoin since they will surely not explore and just hold until they can sold it in high price. Literate person usually explore more in crypto that always result to confusion and multiple bad decisions.

Most of the successful person that invested on Bitcoin are those who hold the most since its value is increasing long term consistently. Illiterate person can definitely hold Bitcoin longer if there will be someone to guide them on how to purchase it. The important question is how can you convince them to invest while they don’t know how to read and write?

Wow! In your opinion, are illiterate people capable of running a business? Perhaps yes, by farming or something similar. But I haven't met such people. In my opinion, people capable of organizing their businesses are talented and have skills that appear after education. But I won’t argue; perhaps you’ve met such people.
But how can these people, without literacy, understand where and how to enter at least the seed phrase from the wallet?
If a person is illiterate, Bitcoin will not improve his life until he matures. Usually, such people have a low level of mental development, so Bitcoin is useless for them.

Are they alone? Can't they learn things? Literacy is something we can learn regardless of age. They may only be illiterate but they can still understand things. They just need guidance therefore, they could still benefit from cryptocurrencies the way we do, like no differences at all but it would depend on their will to do so. With benefits, it could be profit by means of investment, alternative mode of transaction and payment, and more.
But not all literate people are into investments right? What's missing to them? Definitely will and it does not require literacy in the first place. They COULD benefit from this industry and as you said they just need to learn things first. But there are ways and that is if there's someone to guide them with things. Risk is understandable by all people by the concept of 'gambling'wherein everyone is aware of. Athough things are different between investment and gambling, the thought is simply how risk is manageable.

Well that's the risk of illiteracy😁. But what you said does sound simple but in reality I see that bitcoin is not that simple, there are many factors in it that must be mastered and it takes a very long time. In essence, it is the flying hours that will answer, because I feel the sweetness and bitterness of being with him is exhausting sometimes people despair because of it.

Bitcoin will continue to be useful for everyone even if that person is disabled. maybe illiterate people will have difficulty carrying out bitcoin transactions because they are hampered by their ability to see letters and numbers but i am sure that in the future the development of bitcoin wallets will continue to increase and we will see voice-based bitcoin wallets so that anyone and in any condition everyone can do bitcoin transactions easily.
in my country there are still quite a lot of people who are illiterate, but i see that they can still carry out buying/selling transactions well, because there are still many good people who guide them. i am sure this will also happen when transactions with bitcoin are carried out by those who are illiterate.

It is still same thing to me even if a voice base bitcoin wallet is created (even though I don’t think we will get there considering the privacy associated with bitcoin, anything face recognition or voice wouldn’t be welcomed). But still let’s say hypothetically this is created, how does an illiterate person still communicate with the device, remember this are people that can hardly read instructions or even write out anything. First of all they need to able to actually even use the internet which most are definitely finding hard to do, and we all know bitcoin is more complex than that. Have you thought about how they will handle cases like bitcoin transaction needing RBF or them signing from a cold wallet to broadcasting on a watch only wallet. This are cases that hinders an illiterate person venturing into bitcoin. Worst his they trust a friend or family member to do most of this things for them before they get acquainted with it, which is a very big red flag