First, I'd like to join everyone in complimenting your team about the quality of the demo. As was already said many times, the concept of the game is quite original and fresh, which is commendable and very welcome. Most VN authors usually don't dare to take such risks, while they probably should to avoid stagnation of the genre. The game reminds a bit me of an old DOS game, called Alter Ego, and it definitely appeals to me.
Next, and again I think it was already said, your writer really displays talent with designing child characters. They appear as "believable" in their thoughts and actions, at least through the eyes of the adult that I am. The game also always provides us with a satisfying number of sensible options on how to experience "our" childhood, so that's really good (and promising for the rest)!
Maybe some more "innocent" or, let's say, "naive" actions as a child would be great to have too. As an adult, I can see the "motivation" behind most of the alternatives that the game presents to me. They all appear as rational, while most children probably have times where their demeanour appears as quite confusing or even totally irrational instead.
Who, as a child, hasn't burned themselves while touching stuff that they shouldn't have ? Or wasted the linings of our bedrooms with multi-coloured pencils, knowing perfectly well that parents forbid it and would punish us for it ?
I realize that such an addition could make the beginning of the game a bit more "chaotic", and that your intended target IS an adult population, but I thought that it could perhaps also help to further differentiate childhood from other ages. Not *everything* has to absolutely make sense when there is magic about ^.^
Finally, I admit I am a bit apprehensive when I saw that you locked a good number of "sequences" within an age behind DLCs purchases. I do understand where you're coming from and why you are doing it. Good work not only deserves praise, but also (financial) reward and support.
I do hope that you'll manage to keep these balanced, not to spoil the enjoyment of the (base) game, since I can't imagine many players being keen on the concept of purposefully skipping content, even if there is a gameplay motivation behind it (in a sort of "Game+"). Some events are also fairly short, depending on the choices of the player, so that could render the whole experience of the game rather thin. Usually, the more we have to read in a VN, in different, non-empty routes, the better. Maybe this will change when our characters grow up however, I can't say. It's only a demo.
Suffice to say that I wouldn't mind paying extra for, say, a DLC with an additional character, for example (a girl instead of a boy, or whatever).
In any case, I will definitely send a small token of my appreciation your way some time soon, because I think that this project is of high value, that it deserves to be supported and to take off successfully.
All my best wishes to the team, and thank you for creating this game.