Here is my experience. As a Muslim in his 40's with two teenagers, I learned to value both the rational and the spiritual dimensions of Islam. Our youth require rational explanations: why, how, etc.? Thus, reflection, and the practical implementation of Islam are necessary. We should practice Islam by performing the necessary good for the society such as community service.
Moreover, we also need some sort of personal connection with God. The Qur'an repeatedly mentions prayer, remembrance of God, the day of judgment, and it stresses God consciousness. Therefore, I make this spiritual connection via namaz because that is how I learned to do my personal or congregational worship. There needs to be some sort of a personal connection, namaz or other, with God. I believe we should avoid excluding the personal connection altogether. I would not worry about the minor differences of worship