- Lap swimming can be VERY boring. Having someone else in the lane, even if you don't communicate with them verbally, keeps your mind a bit more stimulated just by the sheer fact that one must keep aware of where the lane partner is in the pool relative to one's self.
- Your lane partner can spur you to swim faster. Who wants to be humiliated by someone in baggy trunks?
- Your lane partner can make you feel like a fast swimmer, even if you are not - this of course requires your lane partner be a slower swimmer than you.
- Your lane partner can provide you with a slip-stream if you want to swim along side them like a baby whale does it's momma.
- By having a lane partner, your lane is less likely to be chosen by the next crappy swimmer who wants to get in your lane.
No, I didn't list 10 benefits. I'm sure there are more, but jeez, I never thought there was one good reason before this year. Give me a break!