The seed that fell on the footpath represents those who hear the message about the Kingdom and don’t understand it. Then the evil one comes and snatches away the seed that was planted in their hearts.
The seeds that fell on the footpath represent those who hear the message, only to have the devil come and take it away from their hearts and prevent them from believing and being saved.
“A farmer went out to plant his seed. As he scattered it across his field, some seed fell on a footpath, where it was stepped on, and the birds ate it.