Some people are just not very good when it comes to being the lead car in a 'follow me' scenario. Case in point the guy I was supposed to be following today. It didn't start well - he turned out of a side road in to heavy traffic without and consideration for the fact that I was following him. It took me another minute or so to get a gap in the traffic by which time he was long gone. I pulled over and called him up. He told me where he was so we met up again, and off we went. It went better this time - we got half a block before he cruised through a red light in front of me. I stopped and this is a particularly long red light. By the time it had gone green again, he'd made his way on to the motorway, so I just gave up and drove home. It took about another 20 minutes before he called me up from 30 miles away to find out where I was.
If you want someone to follow you, give some consideration to that as you drive. Use your common sense.