Ah, I just love "teachers" who focus on one tiny little thing that they can very likely figure out anyway, instead of focusing on the subject they are being paid to teach....
I've given up (among other things like the signs for p, q, f, and g, and how to pronounce "scarce") trying to figure out the difference (see above mention of teachers glomming on to one little thing instead of teaching their actual subjects). There's a block in my brain that I can't seem to move. I try very very hard to just avoid the need for that word in sentences...
As for PA...there are some pretty heavy dialects going on there...I went to chiropractic school with many Pennsylvanians and noticed it with the commonly heard "I need adjusted" instead of "I need to get adjusted". And it was in many other sentences similar to that... My "accent brain" was in heaven there...Pennsylvanians, people from New York and New Jersey, and of course the school was in Spartangburg, SC... (by the way, I overuse ellipses if you hadn't noticed) Oh the different ways people can say the word "oil"...