Also, I have an idea that will hopefully happen eventually about how kids will come in a future game or two.
First, have the original generation of characters bond, marry and have children over the course of at most 1/3 of the game.
Second, when the 1/3 of the game is done, set the timeline like 15-18 years later where the children have all grown up and (optionally) they can take over their parent's roles. However, you can still keep the original generation with the new generation if you want.
Thirdly, have the children (or at this time, young adults) bond and marry like their parents did but with no children, since it'd be better if the children change depending on the pairing you made of the new generation in an epilogue.
Finally, give the children/young adults more personality. Like I said in my previous post, I like the personalities of the children of FE14, but make their supports and relationships with other characters more realistic unlike the last two games.
Would that be a better idea than time travel and alternate dimensions? What do you guys think?