I think this is because of the place where we live- people are not opposed to faith or religion unlike in other countries. Are there any other reasons?
I wonder whether it's the lack of impact / challenge our faith (speaking generally here about Christians in this country / the West) actually has. For a long time - although less so now - the church has been willing to keep faith "private" and so it is easier for others to ignore us.
Is it to do with how much we are actually being "salt and light"?