It's obviously not a huge problem. I used to sit in front, but it was lonely...not many people apart from some keenos sit there and they don't even say hi. There are 13 other people doing my subject at my college and so it's nice to sit with friends rather than like some nutter in the front row of a 500 seater lecture hall. Even the lecturers think you are weird if you do that. I find it hard generally to socialise and it would be worse if I sat apart from the rest of the group.