I use one side of the retaining wall as it faces my back and side yard . I live right next to the rail road tracks . That other side of the retaining wall faces the rail road tracks where anyone who hopes the locked fence ( locked by the city ) , walks the rail road tracks , walks a trail , hobos , etc . can access this wall .
Question: What may be the reason why they hope the fence is locked ?
The answer to the above question:


They want to feel safe .