Men generally have a choice between boxers, briefs or commando.
Likewise pen turners have choices and the decision is often based on the same thing that determine choice of undies - personal preference.
CA, shellac-based friction finish, lacquer-based friction finish, oil alone, wax alone, a combination of oil and wax, polyurethane, or even commando (polished, but no finish). And finishes can be wiped on, sprayed on, or dipped. Part of the fun is experimenting with different finishes to see how the results compare.