http://www.lioncity.net/buddhism/index. ... &p=1213497
Many people never really learn or practice the Dharma very thoroughly at all, so they don't see the benefits, so they give up. Basically, not many people practice the path as described in the Buddhist teachings... they do it here and there when they feel like it or when they can force themselves to, generating some vague compassion for a few minutes and then not following through with the off-session mind training, yet they expect all the results said to come to those who devote their whole being to practicing for all sentient beings. Not a fault of the Dharma.
Of course this is probably because many people don't take their situation in cyclic existence very seriously to start with. They don't want to undo eons-old habits that have lead them to life after life of suffering, they want to engage in something from time to time that makes them feel good and makes this life seem fuller. The prospect of looking into one's mind is too uncomfortable and taming it is too much hard work when we can just fill it up with something that gives immediate gratification... something we can distract ourselves with and that makes us feel like we're benefiting more.
What do you think fellow brethren? Do 'Teachers' of Dharma have a part in this as well?