I was in 6th grade when Pokemon Red and Blue came out in the US and from about 1998 until 2001 I was obsessed with it. Even though I was in my late childhood and early adolescents during this time, it was still very impactful for me at the time and remains one of my fondest childhood memories. I loved trying to find people who were willing to trade Pokemon with me I didn't have. I loved going to places like Software Ect, Toys R Us, and KB Toys to find Pokemon cards and plastic Pokemon figures from Japan. I religiously watched the anime on Kids WB every Saturday morning, and before that it used to be on during the week at like 6am on Fox, and I used to force myself out of bed to watch it even if I could have got an extra half hour of sleep before school. Yes, I was obsessed with it lol.
However, I remember around the time the third Pokemon movie came out in the US I began to lose interest in it, and while I never completely lost interest it was diminished enough to where I was no longer watching the anime, collecting the cards, or playing any of the games. I did buy Ruby and Sapphire when they came out, but remember having a really hard time getting into them and never beat either game until years later when both were remade on the 3DS. However, around the time I began collecting games in the late 2000s, I got on a huge Pokemon kick again. My girlfriend bought me a DS and Pokemon Platinum and I remember getting really into Pokemon again, albeit not to the degree I did back when Pokemon first came out. To this day I still mostly enjoy Pokemon and all things having to do with it, although I do have some very big gripes about the series that have decreased my enjoy of the franchise.
For one, I feel like he quality of Pokemon hit its peak with gen 2, and then slowly got worse and worse. I struggled to get through Black/White, and I did enjoy X/Y a fair amount, but a lot of the new Pokemon from that gen were pretty bad save a few exceptions. I actually really disliked Sun/Moon and was the first main Pokemon game I didn't like. I hated that they removed gyms, again the new Pokemon were not that great, and just overall the game felt like a shadow of what it used to be. On top of that I realized a few years ago that I'm not really into the newer Pokemon anime, nor do I care that much for the cards like I used to.
As for Pokemon Sword and Shield, I actually have very high hopes for it. Most of the announced new Pokemon look good, the region and open world look fun, and I've been anxiously awaiting what the starter evolutions look like before getting properly hyped. The only thing so far that really turns me off about Sword and Shield is the kaiju Pokemon forms or whatever the hell they're calling it; it looks like another stupid gimmick like Mega Evolutions and Z-Moves that if anything have just made Pokemon feel like it's running out of ideas. Still, I'll buy it when it comes out and hopefully I'll enjoy it, at least more than Sun/Moon.