You just don't have a clue do you? *Service line these days is hdpe.
And there is no reason to encapsulate it inside pvc. *If the op
replaces his entire service line the likelihood of him having to deal
with it again in his lifetime is nill.-

well if any line is in a area driven over mechanical protection is a
good idea. espically good for rentals.

of course over my lifetime i have known 4 or 5 people who had to have
service lines replaced from crushing

if i replace the gas line here i would do the same to protect it. PVC
is cheap insurance. and the older i get the less digging thrills me