Because free man is able to develop his thinking to do something, but there are people who do things freely without taking into account the freedom of others. This means Freedom itself is limited. For example we want to be free to determine who becomes our life companion later but not freedom that is limited by the criteria in accordance with our eligibility standards.
So freedom gives birth to choices. When people are faced with choices, then of course our space of thought is limited to the choice of choice, of course, by rationalizing the consequences of those choices. Then where is that freedom? So what if we are wrong in determining the choice.
Instead of being free to escape or avoid lies. But if we transgress or exceed the limits of freedom itself will only cause problems and problems that begin from our mistakes to determine the choice of action or attitude to a problem.
Want to Be Healthier, Be Better or Prettier, Richer, Better / Better, Better, Safer Position, That's The First Reason For Freedom. But in man, this becomes an eternal struggle between conscience which is aided by logic with lust. When our target is to avoid the problem of life then there is no other choice is to do the things that will lead us to be free from that problem.