At my church, there are a lot of children who like to clamber on the seats; climbing them, jumping on them or just putting their feet up on them.
Some parents are careful enougth to ensure that their children remove their shoes before doing this. However, some parents allow their children to climb on top of the seats with their shoes on. This is very anti-social.
It is not nice to sit on a seat where some child's dirty shoes have been. If you have children and attend church or any other kind of public meeting, please ensure they remove their shoes before climbing and jumping on the seats.