for the last 20 years and still actively encourage manual operation of the aircraft.
Extract from the FCOM used by the airline Germania (737) 20 years ago.
" Full use of automation is required at all times. Only under exceptional circumstances will hand flying be permitted"
While I am sure very few modern airlines would be that restrictive nowadays, there is also little doubt that many operators just pay lip service to the need to keep current at manual flying. Hence the main reason for the increase in Loss of Control incidents and accidents.