I'm not too sure when my first game was, but I would have been 6 or 7, and it was a home game against Reading. '93/'94, something like that. My dad took me and got us in about an hour early (to soak up the atmosphere, presumably) and it was really cold so I was wearing several layers. I remember the score as being 2-2, but that might be wrong.
I used to enjoy going, but mainly for the day out. My mum and dad split up when I was young, so it was my time with my dad every Saturday (I'm from Chesterfield so we'd go to their home games when United were away) and he always spoiled me with big Yorkie bars and gallons of coke. It was always fun to go out and be amongst men shouting passionately and giggling when they swore, I'd never seen adults behave that way (a middle class upbringing shelters children from all that, it seems) and it felt like I was being treated like one of them, which I never got anywhere else. I think that's what draws you in as a kid, the Kop on a matchday is another world, the rules are different and you get to escape being talked down to or condescended by adults. You're one of the lads. Going back to school on Monday was always grey and disappointing, especially as most of the boys "supported" Man UTD. I knew they didn't have the same fan experience as me. I'm sure most of them never even set foot in Old Trafford.
I didn't really get the football aspect until Euro '96. The combo of me being an impressionable 9 year old at the time, living in the host country, it being a long, hot summer and England actually being a good team really got me into it. I am still obsessed with international football today.
So my favourite era was '96-'03, I vividly remember all the cup runs and play-off games. I still feel the buzz from thinking "surely we'll win this one?" and actually count all those failed big games as happy memories. I was only young then, and the sunny days out were very happy ones for me, regardless of the result.