Not an alum, not a pure "sidewalk" fan either -- I'm an "extended family" fan. My father went to Tech one year before heading on to Annapolis. My mother grew up on Techwood Drive from the '20s to '40s, about a block or so from O'Keefe when it was very much still a junior high school. (And my mother worked on The Hill and in the Chem dept for about eight years, mid-40s to early '50s.) A long-gone cousin came to Atlanta from rural Hart County, and ended up working at Tech from the 20s to early 60s, much of it in the registrar's office. An uncle barely, and I do mean barely, graduated from Tech, going there on the G.I. bill after a delightful island-hopping Pacific tour with the Marines in WW2.
Not being a math/science guy, and coming from the comfortable confines of a small private high school, I had no inclination nor business considering Tech, so I didn't -- a small liberal arts college in Florida is where I graduated, later followed by a law degree from Georgia State when it was getting off the ground in the '80s. Frankly, while a mild fan of Tech through my 30s, it really wasn't until the past 15-20 years I kind of shifted into becoming a more hardcore fan.
(Oh: My mother, now 94 and quite feeble, still misses no Tech football or basketball game on TV. The last Tech football game she attended in person was a good one; we went down to Tampa for the ACC title game in 2009.)