Don't know if you're joking or not, but let's assume you're not.
It was just around that time that I started following City properly. My mum's a blue, my dad's a red. They both agreed to push neither team on me so I ended up taking in City and United stuff by osmosis until I was about 4-5 years old. The first team I "supported" (if you will) was Stockport County, though, because they were nearest our house and were sort of a stand-in for me until I inevitably picked City or United. County are still my local team and still my second team.
United won the treble the week before the play-off final, but the European Cup final was obviously on past my bedtime at that age. So I got taken to watch the Gillingham game in a pub the following week because it was on mid-afternoon, and I found it all very exciting. Then my cousin and uncle came back from Wembley with a big flag and a scarf that both got hung on my bedroom wall and stayed there until I moved out for uni at the age of 18. I've still got that flag somewhere.
I went to Maine Road for the first time the following season (3-1 win over Norwich, Mark Kennedy scoring twice in a minute, think it was around Christmas 1999) and that was that. I started following our results after that, expressing an interest in City, going to Maine Road as much as we could afford. Then as a present for my 9th birthday I got bought a season ticket at the City of Manchester Stadium. It all goes back to the Gillingham game.
I talk about it all here:
https://www.patreon.com/posts/53723237?collection=123028