We need to be careful in generalizing about whether working in any scale is "easy." As I get older, and my vision deteriorates, and my muscles get more arthritic, I become more and more aware that things I found easy thirty years ago just aren't any more.
Some people, for reasons beyond their control, find it difficult - or even impossible - to work with tiny parts. And - just as important for those of us to whom this is a hobby - if it becomes physically difficult it just isn't much fun. I can do most of the stuff I could do thirty years ago, I guess, but I have to work harder at it. Thirty years ago I could handle just about any modeling problem without resorting to magnification. (People at the museum where I used to work made a joke of it: "Tilley must be getting serious - he's taking off his glasses.") Without glasses I couldn't recognize people from across a room, but I could do just about any modeling job I tried. Nowadays I have to use some sort of magnifier - and point bright lights at the workpiece. I find myself getting headaches after a few hours - largely because, with magnifying lenses in front of my old eyeballs, I can't focus on objects that are a few feet away.
That said, I remain a big fan of 1/700 ships. I have two major reasons. One - they don't take up much space. (My wife is wonderful about the sailing ship models that occupy lots of space in our den, but she just can't get enthused about big, grey, floating steel objects that massacre people.) Two - I can afford them. The prices of larger-scale warship kits have simply gotten beyond my reach - especially when the various aftermarket parts are thrown in. (I'm sure the Hasegawa 1/350 Akagi is a first-rate kit, but if you buy the kit itself and the all the aftermarket sets Hasegawa markets for it, you'll spend $600 or $700. I just can't justify that.
Bottom line regarding any scale or genre of model building: try it (if you can afford it), give it a fair chance, and see if you like it. If you don't, try something else.
Youth, talent, hard work, and enthusiasm are no match for old age and treachery.