Minority Report

Coins or Phonecard

Some people may not have loose change with them. So making phonecalls on coin phone may be a problem. Solution is to install phones that accepts phonecards ONLY. All time best solution since everyone will DEFINITELY remember to have phonecards, rather than coins. Why don't they just install phones that accept both coins and phonecards? I've seen them around, so it's not like such phones are not in production. But the point is, if some people may not have loose change, then expectation is most people might not have loose change. BUT, everyone sure got phonecard lah...?

Conclusion: I'm just a minority report