Abbi

No go with your gut instinct. If you don't feel she's responsible enough say no. It's better to be safe than sorry. Why don't you try and enroll her in a baby sitting course and/ or a first aid course. It'll stop her being bored and when she is deemed responsible enough to babysit it'll give you piece of mind.

Your step daughter sounds very frustrated, it's hard to be a 13 year old girl she's in a really horrible age that's not a baby and not a grown up. Mmm what's the saying too old for barbies, too young for boys? Whilst she shouldn't be treating you like this, she's trying to grow up, and like most 13 year olds she's trying to do it quickly.

I think by trying to give her some responsibility you're doing the right thing, when she's not throwing all the attiude at you keep doing it. An remember to explain why you don't when she's being rude. She probably will strop but she'll think about it later.