I want to believe that the percentage of persons who can have pleasurable sex everyday for 3 years is very low (maybe 1 in 15,000). By nature, anyone with a high libido is usually adventurous and industrious (although there are exceptions), so, such persons will often than not channel all that energy into other productive things the moment boredom starts to surface. Trust me, everyday sex for 1year will be boring (even when you have multiple partners how much more just one partner).
So to answer your question, I CANNOT have daily sex with my partner. Pleasurable, long lasting sex is energy draining (that isn't to say there are women who don't enjoy short duration sex but we all know the average woman requires quite some time to be 'awakened' and eventually 'climax'). Besides, anyone who has discovered purpose won't be caught in bed every night (even with sex out of the picture).