I do not consider these reasons why people would believe in God if there was no evidence for God.
Please allow me to explain why.
1. Because we can; we are able to conceive of the notion of other minds.
We can believe in lots of things, so why believe in God with no evidence?
Do you have any idea just how much people believe with no evidence? It's not just God -- you forgot about angels, demons, Satan. And Muslims and their djinn. And you've forgotten how many people believe in reincarnation, transmigration of souls, astral travel, auras, fairies, Big Foot and chupacabra. Oh, and witches and wizards (not just Harry Potter and Hermione). Conspiracy theories abound, on every topic under the sun. The list just goes on and on and on! I wouldn't have time to get half way through the list. Try reading Michael Shermer's "Why People Believe Weird things."
2. Because it's a heck of a lot easier than actually learning, which can take an immense amount of study for many topics.
You are assuming that believers don't learn anything, but colleges are full of people and most of them are probably believers since most people are believers. I attended colleges and universities for over 15 years and I have two advanced degrees in different fields.
You know, as well as I do, that the vast majority of humans alive today lack advanced education. Moreover, it is well understood that religious belief and religious attendance are two different things. It is also known that higher education tends to sort towards less strident religions, and towards more social ones. Thus, there is a well-known tendency for the educated to move away from religions that require belief in dogma -- which the better educated know to be often nonsensical.
3. And because it provides "answers" (whether true or not) to questions that plague us, and getting an answer, any answer, is so much more satisfying than having to admit you don't know.
That is a valid point but I still don't think that believers believe with no evidence although a numbered few who have no religion do believe with no evidence.
But the vast -- very vast -- majority have no evidence at all. Only hear-say, things they've been told others experienced ("witnessed"). And none of the presumed "evidence" is ever repeatable. In science, I could, if I had the will, the skill and the knowledge, set up an experiment to test any theory that has been tested before. But when God supposedly heals a presumed illness, nobody can ever get Him to do it again as a validity check. And the supposed "miracle cures" are invariably those that cannot be verified in any real medical sense.
So as I said, most people have no evidence, and no evidence has ever been produced that clearly demonstrated the existence of God.
Let me expand on that last point. Do you suppose, really, that if such incontrovertible evidence existed, anywhere on earth, that it would not be the biggest news story of all time? Nobody, but absolutely nobody, would not be aware of it -- it be trumpeted so loudly and endlessly everywhere that we'd never be free of it. Yet, sadly, such a thing has never happened.
Belief in God provides answers to some questions but it does not provide all the answers and it raises as many questions as it provides answers, since God, the soul and the afterlife are mysteries no mind can fathom. Moreover, I do not think that most believers believe in God because they ant to know the purpose of life, since most believers don't even know what the purpose of life is.
Look how you've framed that: "most believers don't even know what the purpose of life is." You just made it clear that, a) you think some believers do know what it is, and that b) you don't accept the very real possibility that it has no purpose at all -- that it just is.
As I told my husband last night, atheists are better of with no belief in God than with a false belief, because at least there is a chance they might come to true belief, if they are searching for truth.
Even if that "truth" is that there is no God to help us, that we are alone in solving our own problems, and that when we die, we no longer exist -- period?