Matt wrote:

I don't want to share the mailbox, just the calendars but I don't
want to have to create a public calendar for each of the users

You have to share the mailboxes in order to share the calendars, since the
calendars are stored in the mailboxes.

I never suggested creating a public calendar for each person. One calendar
for everyone is what I had in mind. We do that where I work and it's very
handy.
--
Brian Tillman