ha ha well I wouldn’t exactly call that the most appropriate place and time, but why not 
In my opinion, approaching somebody always involves the risk to make them feel uncomfortable (and yourself). Assuming that the goal is to introduce each other and have a conversation that both parties can enjoy, I agree it’s helpful to be mindful of whether or not the other person might be interested, even though not everybody can easily identify this. But I wouldn’t go so far as to rule out places like a bus station.
100% agree with this. Perhaps it’s the bare minimum appropriate behaviour, but from what I hear unfortunately many men don’t even obey these simple rules.