One problem is not being able to integrate dharma practice into their everyday life. Generally people in the West are intellectual. Many people have university degrees so they know a lot. But most people in the West think too much and spend too much time talking about dharma instead of practicing. Most people think too much about past and future and do not realize we have to be in the present moment.
Some people misunderstand meditation and Buddhist teaching.
People sometimes think that meditation is escaping from daily activities of life. However, dharma practice is not escaping from life. If we are practicing correctly, dharma teaches us how to be in the world and cultivate compassion, Bodhicitta, Shunyata, and true renunciation. Buddha taught the sublime path for everyone. Following my lineage.