Everything depends on the dynamic of the family and how the parents raise them. You can’t say that a child does not have a “right” to ask the parents if the parent has given them that right. You can’t say its a chutzpah of the child if the child has not been taught any better. It all depends on what the child was taught.
Obviously you were raised with a conscience and with a value system of needs and wants, and what your parents are responsible for and what you should be responsible for or what extras should be earned. Not every family has the same house rules, or are taught the same type of responsible behavior. Kudos to you and your parents for setting up a sense of value and responsibility in your home. But we can’t judge others or fault others for not knowing better. WE can only try to teach them by being a good role model to follow.
On the other hand if they do know better and continue to behave childishly and selfishly you can only offer your opinion; but it is up to their parents and mehchanchim to set them straight. DO NOT allow their bad behavior to rub off on you. Be proud of your good middos and the value system you were taught.