Why is 散髪してもらう correct?


> まさか入院中に **散髪してもらえる** とは思ってもみなかったよ。

The character is a patient in a hospital who's having his hair cut by a nurse
who was a hairdresser.

散髪する means "to have one's hair cut". To me, it looks like the nurse is cutting
her hair herself and the patient is grateful for that.




Think of 散髪する and 髪を切る simply as "to cut (someone's or one's own) hair", but
this _also_ includes "indirectly" cutting one's own hair at a barber (using a
barber is just a means of cutting hair). When an ordinary person says 散髪した, it
usually means "I had a haircut (at a barber)", but it's perfectly fine to say
自分で散髪した ("I cut my hair by myself"). When a hairdresser says 彼の散髪をしました, it
would mean "I cut his hair". Thus, the sentence in question is perfectly
correct.




Think of 散髪する and 髪を切る simply as "to cut (someone's or one's own) hair", but
this _also_ includes "indirectly" cutting one's own hair at a barber (using a
barber is just a means of cutting hair). When an ordinary person says 散髪した, it
usually means "I had a haircut (at a barber)", but it's perfectly fine to say
自分で散髪した ("I cut my hair by myself"). When a hairdresser says 彼の散髪をしました, it
would mean "I cut his hair". Thus, the sentence in question is perfectly
correct.

