Thank you very much for playing the demo and for your kind feedback.
I mention the controls being listed in the pause menu in the intro text, but that is easy to miss or forget. To address that, I think I will implement controller prompts for most things e.g. a little 'I' and 'N' by the inventory and notepad.
Trevor is a young teenager. I think that will be clearer in the full game, and especially during the intro/tutorial area. He's old enough to be out and about on his own.
I didn't design the game with kids in mind, but I think it would be suitable for them. There won't be any bad language in it or violence. The characters you meet all have good hearts, even if they're sometimes grumpy or a little rude!