What should a complete rookie get to start in the hobby? Something to learn and build off of.
Mostly good advice on the candidates.
Something I would add, based on personal experience - be prepared to write-off the first drone (or RC plane) you buy to learn to fly.
It will be going down hard more than you planned, it will get stuck in the trees, it will need repairs and replacement parts, and complete replacements. If more than one pilot is learning to fly in the family, multiply the projected loss rate by the # of learner pilots.
Mavic 2 kit on Amazon $998 for every thing. 6 months to pay no interest. It's rated #1 last time I looked.
Mavic Air 2 with Fly More combo is what my kids fly for fun these days, and for rocketry shots.
But it is our 5th or 6th drone, and we've written off (or returned, or warrantied) all the earlier ones.
I believe his main interest going forward fill be high res video and photography. Budget is likely ~$200 for this gift.
MA2 has all the high-end features I value, but I would be hesitant to recommend buying it as a learn-to-fly starter kit, unless you are comfortable writing off $1K toy.
Mavic Mini is 1/2 the price (lower range and video quality), but it still at double your target price point.
Below that, there is a massive drop in performance, quality, and capabilities. You will likely be priced out of the FPV flying capability set. I can't say that I would recommend anything other than line-of-sight <$100 starter drones that others have pointed out.
He is a climber, skier and cyclist so he will be outdoors much of the time.
If the kid already has the latest GoPro Hero 8 or 9, anything less than DJI MA2 will be producing inferior videos. And they will notice.
If he doesn't have GoPro, I would recommend getting one of those.
It's what my kids use 10x more than the drones.