She is definitly being rude, I wouldn't say "out of line" because it's not like she is trying to spank your kid or something. But she definitly shouldn't be doing it and she should respect your boundries and how you choose to raise your child.
My DS is 18 months and he says thank you sometimes only because when he hands me a toy or brings me a 'snack' I say thank you, so he copies me. I have friends at play group who force their children to say please and thank you, the parents tell me not to give the child the toy/snack until they say it. So out of respect for them I smile nicely and wait for the word as the parent is encouraging them. I then tell them your welcome, and make sure to give them a big warm smile.
I don't agree with what the parents are doing, but I choose to respect their decisions. Your stepmom needs to learn how to as well.
My DS is 18 months and he says thank you sometimes only because when he hands me a toy or brings me a 'snack' I say thank you, so he copies me. I have friends at play group who force their children to say please and thank you, the parents tell me not to give the child the toy/snack until they say it. So out of respect for them I smile nicely and wait for the word as the parent is encouraging them. I then tell them your welcome, and make sure to give them a big warm smile.
I don't agree with what the parents are doing, but I choose to respect their decisions. Your stepmom needs to learn how to as well.