It’s something I noticed right away.
I love the game and the attention to detail is great in the game. However, the lack of children is almost eerie, especially the lack of sound of kids voices and activity generally; and not just inn play but at work; in life and death (infant mortality, especially at a time in history when plague probably made new life even more precious and it was the youngest and eldest that tended to die).
Had a quick look are but could not find and academic reference for age distribution in the medieval European population but did find a reference used for games which probably gives a reasonably idea what a typical village or town may have had in terms of kids.
Medieval Population Pyramid
It shows something over a third of the population would have been under 18, which really makes their omission even more stark. Half of the population would have been under 25.
It may have been even higher. The population data is from the English Poll tax data c.1377 but as a general guide again helps give some idea of the age pyramid from the time, considering there may well have been variation over the times due to demographic shift, notably plague etc.;
Whereas Russell assumed that children under the age of 15 accounted for 33.3 percent
of the population, Postan suggested that the ratio may have been as high as 40 to 45 per cent.
For the period after 1541, when reliable data become available, the percentage of under-15s
in the population never rose above 40 percent, which surely represents the upper limit for
1377 (Wrigley and Schofield, 1989: Table A3.1). As Blanchard (1996) points out, such a
high ratio tended to occur in periods of rapid population growth driven by high fertility. Since
population was declining in the aftermath of the Black Death, a ratio as high as 40 to 45 per
cent in the 1370s is improbable and a lower ratio more likely.
source: ENGLISH MEDIEVAL POPULATION: RECONCILING TIME SERIES AND
CROSS SECTIONAL EVIDENCE (pdf)
It’s understandable that any developer would have to tangle with the thorny issue of including infants/ children in a game and hard to deal with such moral questions of their mortality etc.
However their absence removes what must have been a core experience in everyday life at this time. In normal day to day life but especially during times of tragedy and turmoil when the life lose of an older parent is tragic, the lose of children must have been potentially devastating.