There actually already is, the Unitarian Universalist churches are open to all beliefs, and traditions, even secular.

Personally, I just go out in nature and do that. Why should anyone need to go into a man-made building? I think taking in the wonder of God's creations is a much better way. But to each their own.

Advertising is needed to attract peoples attention so that they are interested in the things, so yeah it is quiet important!

To target more people worldwide and especially target exactly people interest and also because today there, there's a competition then it must be the height to make your place in the market.