How likable is Gretel's character in The Boy in the Striped Pajamas?

I think that Gretel can be likable. This is because she is
only a child, and she is unaware of what is happening around her. She is kept away from
the Nazi world by her parents for her own good. She has been forced to move from her
home in Berlin, just like Bruno. Also, she has no friends like Bruno to show her loyalty
to. She gets very lonely at times, so the only people there are to influence her are the
people she communicates with everyday, Kotler and Herr Liszt. She does not have much of
a choice. I understand that she is easily influenced but many children look up to their
fathers and do not want to disobey them. Gretel is justified. Bruno is just a younger
brother. All brothers have something bad to say about their sisters, who likes their
siblings? We have not heard the story from Gretel's point of view yet. She has her own
feelings too. Just because she has been influenced by her Father does not justify
anything. She puts up the posters of the country because she has patriotism in herself.
She wants to show that she is mature and old enough to understand what is
happening.