I do believe that young people (AKA children) will imitate and reflect the values, ethics, demeanor, personality, and characteristics of their parents (or parent). If that includes respect for or how to behave and what to do in a vehicle, that is a parent who is teaching this to their child/children. I cannot blame our young-people`s problems on themselves as much as it is the parents because it is the parent`s responsibility to BE a parent. Unfortunately, our society has relegated this roll to teachers, day care providers, clergy/pastors, and government agencies or department officials (like social workers), or even hand-held electronic devices . None of these can substitute for parents and the influence they have on a child. Perhaps it is more a reflection of what we deem socially-acceptable as a definition of a "family" and we are reaping what we have sown as a society. Some may say I am moralist or even non-inclusive person and I have no right to be judgmental about who or what is a "family".
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You are correct in saying that you may need to "give up" some of the things you enjoy doing, like detailing your personal vehicle, when having a child and raising them. I applaud and commend moms and dads (AKA parents) who do so for the benefit of the child, and yes, our society.