I agree that his mom never teaches him what is good right or wrong and he must not talk while the elders are talking.To say sorry you must first understand that you did something wrong. Has his mother pointed out it is not right to behave so with an adult and break a glass. This explanation can be done with love..
While every-one has been debating that Ansh is alone and missing his family. From the start of the show he has continually spoken to adults in a disrepectful manner. His mother answers has always been hush and she has the embarassed look.