Most Japanese anime have same messages.

(1) Young (really young) people are good / innocent and weak
(2) Bad guys are old.
(3) Hiro was awaken / grown
(4) Society was opressed
(5) There is love somewhere

What is that mean?
Well, Japanese people are very quiet and weak.
Government is, well, very socialistic.
People are waiting for a hero.

This is Japan.