In article ,
"Richard" wrote:

Do pilots follow the white lines on taxi-ways or swing wide as truck/trailer
drivers must do? Are they just a night aid?

It depends on what you are taxing.

If I am flying a Champ or a Cub from the back seat, I will do S-turns,
wandering back and forth across the taxiway centerline to see what is
out in front of me.

If I am flying a tricycle gear airplane and the centerline follows an
uneven seam in the pavement, I will taxi to one side or the other of the
line to spare my nosegear. If the pavement is smooth, I follow the
centerline.