Assembly is part of how a computer computes, and there are people who want to understand every step of the process. Such people are not satisfied until they can

Assembly is part of how a computer computes, and there are people who want to understand every step of the process. Such people are not satisfied until they can pull back the covers, and say to themselves "Aha! I get it, this little thing here feeds into this thing here... which goes there... and out comes my answer. Cool." And it's a good thing such people exist, because they build all of the foundational technology that you take for granted.