First time in Japan - JR pass worth it?

First time in Japan with family of 3. Itinerary as follows::

Haneda Airport to Tokyo
Tokyo to Kyoto
Kyoto to Osaka and back to Kyoto
Kyoto to Nara and back to Kyoto
Kyoto to Hiroshima and back to Kyotohttps://www.jrpass.com/forum/itinerary-check/posts/new#
Kyoto to Tokyo
Tokyo to Mt Fuji and back to Tokyo
Tokyo to Haneda Aiport

Please advise if it is beneficial to purchase JR Pass.

If we purchase JR Pass online, how long to deliver to US (California).