I always figured the second part.Talaris said:I'm not certain on this, but my belief was that the lack of parents represents the common situation of Japanese workers working 10-14 hours a day, and rarely being able to spend time with their children, which has gradually led to a disconnection between them. The fact that many anime have parents who have died may be a call out to the reverse situation in that Japan has an aging population with less children.Casual Shinji said:You wanna talk about anime tropes though. How about how most kids in anime have no frikking parents and just live on there own.
What is clear however is that having a story with no parents allows the main characters to do a lot of crazy shit which would be much less likely had said characters had any parenting at all. School Days and Yosuga no Sora are prime examples here.
If you have a show filled with a meriad of teenaged characters, it's easier not to also have to create an entire family for each one. Though some shows actually manage to implement parents very well, like Kare Kano.