All true advice.
Larger scale models demand more detail to be added. Warships are a good example.
The 6 foot destroyer I have (which I didn’t build!) has railings all the way round for a start, and on a model that size and scale (about 1/40..ish) you could not leave them out.
However, the 1/96 scale HMS Manchester which although is not far off the length at 57 inches is a much smaller scale and in order to finish it (as the hull/superstructure had been hanging about the shed for 25 years) I purchased just sufficient fittings to complete it, no railings and it looks ok.
Conversely my 1/200 HMS Nelson has very little actual detail on it even at 4 foot in length. The detail would be so tiny as to be invisible once on the water..not only that, a battleship deck would be strewn with ephemera…spars, rope…stuff, and I tried to add a few bits but at that size they did not look convincing. In addition, although you can get etched brass detail, it is very easy to damage, and on a “working” model, that is to be avoided!
Ashley
Below. An example of absolutely minimal actual detail, masked by distance.

Ashley