answer:My guess is that they are being safe. They don’t know if opposing traffic from the right is making a left turn and might cut off part of the turn lane because of the angle of the curve. I know that happens quite a bit here, and slow down before I get into the left turn lane. It’s also quite common for someone ahead of me (in the straight lane) to have a need to bully his or her way into the left turn lane because he/she didn’t plan ahead. And that isn’t even getting into the possibilities about being unsure of directions and decision making. Bottom line, there may be perfectly legit reasons. CHill.