Let's look at this low hanging fruit:
Show default (empty) document on startup in document-based Calligra apps
One less question to the user who wants to get job done. Apparently it's most popular choice in office suites.
Covers most cases. Reduces intrusive GUI bits that stay in the way of user's mind.
Generally I'd even say: show as small GUI as possible by default. Less tools, etc. Content is leading here.
So frequent scenario:
- Run a word processor, without delay
- Type something quickly
- Close the window, save default.
If we support this in more than these 3 steps people use Kate or LO Writer or Vim or whatever apps that requires less steps.
Users that want to change default template or find recent documents will be able to do so - they know the Desktop metaphor and Recent documents app's and system menus. Also: KRunner and Windows/Mac/Ubuntu's equivalent.
(I yet have to look at technical ways to do the same in Kexi, that's not so easy as with documents)