YMMV / Time Enough for Love

• Audience-Alienating Premise: Nearly-immortal man spends chapters and chapters describing in detail a galaxy where ephebophilia (and hebephilia and pedophilia) and incest are normal and rampant; he himself practices both.
• Creator's Pet: Literally every female in the story wants to bang Lazarus. Literally literally. Even the computer wants to sleep with him.
• Fridge Logic: A simple solution to the problem of being drafted into the military would have been for Lazarus to inflict a minor but disqualifying disability on himself, say by having one of his eyes removed before going back in time; the technology exists in the 43rd century to implant cloned eyes. Granted, Lazarus intends to arrive during the peaceful 1920s, but it seems a good precaution in case Ship!Dora misses the mark, as does happen.
  • One cornerstone of Lazarus' characterization is that he's very self-reliant and tries to be prepared for things to go wrong in a way that forces him back on that self-reliance. If any of several possible misfortunes had left Lazarus stranded in the past during his time trip, he'd be forced to live with that mutilation for centuries if not longer. It's understandable that he decided not to do that before he knew he'd end up caught up in the war. By the time he'd be considering it specifically because he knew he needed to avoid military service, his 20th century family would likely have suspected that his conveniently timed injury was something he'd caused in order to stay out of the military.
• Protection from Editors: Larry Niven, who was friends with Heinlein, suggested long after Heinlein’s death that this novel and its successors lost the “density of ideas” of Heinlein’s earlier work.
  Niven: His later novels sprawled all over the place. They needed an editor!