>>64412484
training and equipping soldiers is expensive, and making elite soldiers is even more expensive.
during the early Napoleonic Wars era, countries could afford to deploy smaller elite infantry like mounted infantry, skirmishers, and grenadiers.
but by the late Napoleonic wars era, shit got so expensive and troop quality declined massively, that countries could no longer afford elite mobile infantry.
thus they had to conscript every dumb mouthbreather possible, and the only thing a mouthbreather can do is be a line infantry in massive blocks of fellow mouthbreathers.