Yes, but their are countries were only a minority of people still practice religion
Puritans only
Only some people practice Buddhism, or Zen, the majority are Communist. Communism is a political belief, not a religion...
Many People belived that Hebrews were the first to practice monothiesm, a religion where there is the belife of one god and only one god.
The puritans made people practice the puritan religion only. If someone practiced a different religion then that person will be persecuted.
People should only follow Islam if they feel that that is the religion they want in their lives.
All religions have some "secrets" that are known only if you practice the religion, read the holy literature, and talk with the holy people of that religion. Most of these are not actually secret - it's just that people who do not follow the religion are not taught about those things.
The only relevance religion has in secular schools is to put literature into context. Schools are not religious establishments, they are places for learning how to read, write and do arithmetic. The right of freedom to practice your religion, also means other people have the right to be free from it. ;)
No. There should be a separation of religion and government. People should be allowed to freely practice any religion they choose. You may need a few ground rules though. For example: if a religion practices human sacrifice, they should only be allowed to sacrifice people of their own faith who are willing to be sacrificed.
No, they should not. You are looking only at the negative aspects, as if religion were only that. While religion has, indeed, done harm, it is not just that; religion has also done a lot of good all over the world.
The only "responsibility" you have with regard to you and religion is what you think and what youdo. This is ubiquitous to all established religions.
loads of then because it's the only right religion