Although top management generally rates training high, they do not usually fund commensurate with their value ratings. Costs are immediate and benefits are long term. If training is not valued highly it will not be very valuable. Administrative decisions about training are often based upon regulations and fear of lawsuits. Measures of effectiveness of training is a difficult area.
Teaching is an exceedingly complex skill.
Their is a common misunderstanding of the characteristics and potentials of humans as learners. In addition, all of us have our own ideas of how we learn. These personal beliefs about our own skill in learning have some justification, but research indicates that our perceptions are often inaccurate. Also, there are great individual differences in the ability to learn. Other factors such as habitual behaviors, self-confidence, social and emotional reactions, physical fitness, health, etc. affect learning.