Well for me personally, it was kind of a big deal, though not because of drinking or parties or anything like that, it was mostly that when I turned 18 in 3 months I went from being 1.63 m [small](4.46 ft)[/small] tall to 1.90 m [small](6.23 ft)[/small], as you can tell that isn't exactly what I'd call a slight change, it was pretty confusing and I kept hitting my head with low surfaces, not to mention everybody treated me differently since I didn't look like a 10 year old anymore, it was weird, but now that I think about it was kind of funny too, since when I turned 18 my mother did ask me how did it feel to be an adult, and I answered something like Nothing, it's not like I suddenly became tall, oh irony.