I think it is high time that working royals were not measured by the number of engagements they do (as they can do several in one day so that is misleading).
In general, why can't full time working royals work a 5-day week with holidays and bank holidays similar to that of much of the UK population?
Obviously some engagements are not carried out during the daytime but they would get time off in lieu for evening engagements.
Not all if their work is restricted to engagements but, during their set hours, if not fulfilling an engagement, they would be undertaking research or working on their own charitable works.
Different rules would apply for royals carrying out engagements after their State Retirement age. (You can't expect them to do 5 days at 9 -5.30).
Set a different amount of hours per day or per week for part time royals, again with pro rated holiday entitlement.
Surely this would ensure they were more in tune with the population?