Judge whether you should remove low branches by their appearance.
Are the branches thick and strong or thin and weak?
Do the leaves they bear appear pale and curled, or similar to what you consider a healthy fan?
These things tell you how important they are to the plant. Spindly, weak growth is typically pruned off flowering plants, not just cannabis.
Rose bushes, for example, should always have the weak branches/shoots removed to increase flower size and quality on the remaining branches, and allow air to move more freely around the base of the plant, helping to avoid the fungal problems that plague flower growers.
Low hormone concentrations in these low, weak branches also mean that the plant will barely notice their absence and no 'recovery' time is needed. 2 weeks' recovery after a prune is necessary when you have removed a dominant tip with high hormone production.
Hatch, consider phrasing your responses in ways that do not appear argumentative, okay? It would be easier for everyone.