I and my wife were talking about some thing few days back and topic on income tax filing came up and my son who's 7 asked me what is Income tax? and I took a pause and was wondering where to start, but anyway i told me that it is some amount of money that we need to pay to the government from our incomes. Now i have been coaching him on bitcoin and how money works, so though his followup question, I kind of expected but still amazed me. His follow up question was "if govts can print money all they want, why they want taxes?" what amazed me is that even kids when taught basics correct can ask right questions, makes me wonder that as humans we naturally posses the skill of critical thinking. Its only the amount of brain washing done by schools & religions is the reason why most of the humans are not able to ask the right questions. I am a firm believer only by asking right question can one enlighten oneself, I am glad my son is on the right path (at least that's what i feel)