By drilling I assume you are talking a combination of 3 or 4 barrels, rather than a simple o/u. Everyone to their own choice of course, but I wouldn't go that route. Although I can see a good o/u as an all round survival gun, using a drilling day in and day out would seem a bit taxing to me, especially since I am in the senior years category, which would only be compounded with any medical problems.
With these old eyes, all my rifles but two (one an air rifle) have scopes on them. I don't use shotguns and gave mine away, but if I did use them, I wouldn't want a scope for partridge or pheasants. how would that be accomplished with a drilling ? I have an Anschutz "woodchucker" (stock lengthened) as my 'truck gun'. Accurate as can be and only weighs about 4 lbs..sleek & light, it is a dream to carry on excursions away from my truck.
Drillings are a work of art but don't quite answer certain needs for me. ..But as I said; to each his own...