I didn’t play the demo but I assume it’s gameplay very early in the game. My review is that the game starts too slow which is probably what you experienced. Overall it might be worse than Pikmin 3 Deluxe but Pikmin 4 is still a quality game that gets better when you’re around the mid-way point. It’s surprisingly long too (going for all treasure, not speedrunning) and overall I think it’s worth the price.
I’m in my late 20s and I got LASIK a couple of years ago. My doctor prepared me for steadily losing vision again when I hit my 40s or so (in a standard “getting older” way) and to be honest it’s still worth it to me. It’s very convenient and though the procedure wasn’t cheap I think I save money in the long run because my contacts and glasses weren’t cheap either. I recommend it.