Installing security cameras for protection

I noticed that more and more households are now equipped by cctv cameras.Before,I only see it on business establishments and on the streets.For businessmen and for public places,they put these cameras to monitor and also for protection.But now,many homes are having it.

I think people are now installing security cameras at their homes because of the increasing crimes especially now that there are more theft incidents are happening.If some intruders will burglar their home or any incidents,they can have the whole video footage of what had happened.