I had never considered a gap year as an alternative to university. I can't give you some intelligent psychological insight as to why because I hate psychology and also, the reason has evaded me since I found out there was such a thing as a gap year.
When it was explained to me, I did not understand why anyone would want to do it voluntarily. My train of thought went something like this:
"A whole year to adjust to life without school, only to jump right back into the pan afterwards? Why tease yourself?" - See more at: http://chaosanddreams.blogspot.co.uk/2013/10/the-gap-year-dilemma.html#sthash.zGtukaOl.dpuf