I should not even open this site and just focus on important stuff instead but:

I actually found where I indeed got the idea to invest in Gen to begin with. 
	The latter half of the rules on page 4 Reads as follows: [hider=Full quote]
Generation Points can not be increased with Battle Exp, and must be invested in at character creation, or gained by learning Species-Relevant information, performing DNA Digivolution(Jogress), or, if the setting allows, absorbing data from a compatible opponent. (In settings where Player-versus-Player situations occur, Generational penalties may be awarded from the loser to the winner, but may not be put fully out of commission until the Generation Value equals 0.)
[/hider] Thus leading to my misconception (or just plain reading from rule book) that one would (and probably should) invest in gen to begin with.

That said; [@tobiax] has a (kinda) point
[quote=@tobiax]
Generation's more additional complexity. And, as they're just hatching from eggs that came out of the Digivices, I don't think they'd have been recycled or extant enough to gather extra complexity.
[/quote]
It's just maybe some would indeed be more complex coming from (probably?) a data stream, while fresh, some "base code" is more complex than others but I'll drop it at that and go with generation value of 1 (I guess?)

I just might end up changing the Baby 1 too though (as said, I've only give some thought for this)