Why is the letter "I " in English always to writer with capslock?

Modern and Middle English "I" developed from earlier "i" in the stressed position. "I" came to be written with a capital letter thereby making it a distinct word and avoiding misreading handwritten manuscripts - NOT printed ones. In the northern and midland dialects of England the capitalised form "I" appeared about 1250. In the south of England, where Old English "ic" early shifted in pronunciation to ich (by palatalization), the form "I" did not become established until the 1700s (although it appears sporadically before that time).

In Middle English, the first person singular was expressed with "ich", eventually shortened to "i" in the lower case. But printers encountered difficulties setting the lower case "i". The letter would be dropped unintentionally or run together with the words that followed or preceded it. So the original purpose of capitalizing the "I" was to make it stand out from other single letters and provide it with the status as a whole word...

I've always wondered about this too...also does capitalizing the word "I" in the English language imply the same effect as when some God believers capitalize the word "He" out of respect and acknoledgement of His powers?...maybe the self is of great importance in the english language, I don't know but it sure seems like the English speaking world has expressed this sentiment throughout history...is the language being influenced by the culture, or the culture being influenced by the language? just a thought....

the letter I is only in caps when it is used as a proper pronoun meaning ones self

The first person singular pronoun is always written with a capital letter. "I am, I was, I did" and so on.

because it is so tiny it'd disappear if it weren't for the big capital writing

It's only proper when standing alone.

I is a pronoun..