The goal of probability is the relative frequency in the long term, which is based on the fact of the infinite occurrence of the observation, and there is no change in the observation itself. this factor. Subjective probability is an assessment of the probability of a loss on the part of an individual person. It is not necessary that subject probabilities coincide with objective probabilities.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.