WHY Do College Educated People Use The Word Fer..?

If you're talking about the pronunciation, "fer" is correct in standard English. In writing, "for" is correct. I haven't seen "fer" used in place of "for" in writing anywhere, but perhaps I move in different circles.

The mistakes you think you hear are in fact standard English pronunciation, at least in the U.S. When for occurs in an unstressed position, the vowel degrades to schwa and is pronounced with the 'r'.

As you may have noticed, English is RARELY pronounced exactly as it is written. I think it is improper for educated people to exaggerate their pronunciation to match the spelling in an attempt to show that they are somehow "better" than other native English speakers. The word "for" is rarely emphasized or accented in a sentence, and it is a very distinct characteristic of the English language to pronounce many unaccented vowels as the "schwa" sound, which is what you are trying to point out when you spell the "for" as "fer". If you unnaturally accent minor words such as "for" in a speech, you risk sounding stilted and superior, and most modern English-speakers (ESPECIALLY Americans!) do not like being spoken down to, so you risk alienating many of your listeners when you speak too formally.

dang ol dumb colledge peoples aint good fer nothin... :)