I think that might have possibly appealed to me, being on/off duty for extended periods
Yes, 2 & 3 was a great schedule (2 weeks on and 3 weeks off), however, when oil prices dropped in 2015 and the oil companies started crying povert, as they do, there was an almost complete change to 3 & 3 schedule, being already past my "sell by" date and with close to 29 years service in the same field I decided to call it a day, 3 & 3 was not for me.
Electronics very much took over in the petro/chemical field over the years with PLC's and SCADA based control systems, however, pneumatics and hydraulics were still required at the "heavy end", rotating equipment and safety systems, still had to go out in the cold and get hands dirty when things went wrong which was certainly not uncommon in such a harsh environment.