Hmmm… if it were me and a set of a few 7-10 year olds, I guess I’d plan on this:
Introduce the original 1977 SW (ANH), allowing any desired rewatches. Let it sit there a while, maybe a month or two. Use your OOT preservation of choice.
Introduce ESB likewise, letting it breathe before adding more. Let them wonder a bit. Again, OOT preservation of choice.
While the ‘Liar Obi-Wan Order’ has merit and can be fun, I think a 9-part saga is better paced by keeping trilogies from interrupting each other. So, I’d just go onto ROTJ next in the same way. Let it breathe, use OOT. If the kids like to read, maybe introduce Shadows of the Empire somewhere between ESB and ROTJ, if you want.
Then I’d introduce your preferred version of Episode I, maybe digging out the old N64 and playing Ep1 Racer. Feel free to introduce any EU material (Legends or Canon) you like in this and the following eras.
Then I’d do the same for Episode II. Afterward, I’d want to introduce the Clone Wars Microseries, the ‘Samurai Jack’ style one. Again, feel free to introduce any books you’d like. Or the CGI Clone Wars show, too.
Same story for Episode III.
Maybe introduce Rebels.
I’d schedule a set of viewings to lead up to moving into the sequel trilogy. This would consist of:
- Episode I
- Episode II
- (Clone Wars Microseries, if desired, maybe split in two, part one after Ep2 and part two before Ep3)
- Episode III
- Rogue One
- ANH (A fan edited SE version)
- ESB (A fan edited SE version)
- ROTJ (A fan edited SE version)
Then I’d introduce TFA, TLJ, and TROS the same way I have the prior moves. (Ran out of time to type on my phone.)