Nope.
It's my airplane, not theirs. If the plane gets pranged, I'm responsible, screwed and stranded until it gets fixed. They go home and drink their beer all happy that night. Remember that their training and experience can range from extremely excellent to nonexistent. Unless you know them you can't know which is which.
For the planes I fly and most likely ever will fly, other than them pointing where they specifically want me to park for whatever reason, I have no need for them. If I'm close enough to something that I need them to avoid a collision, I will shut down, get out and have a look myself. On more than one occasion I have directly and blatantly disobeyed their signals.
Things I've learned as a pilot and ex-ramp rat watching stupid tricks, here's a few bits of advice to anyone who is or wants to become a ramp rat:
(1) DO NOT stand in front of my prop at ANY distance for ANY reason. You DO NOT belong there at all. DO NOT walk toward the front of the plane. (Note: You really do not want me to have to do an emergency shutdown with the mags because of you. I won't be nice about it in the least)
(2) DO NOT walk up to my little storm window on the Cherokee for any reason even if the engine is stopped. Go stand behind the wing and wait until I open the door. Same basic principle applies to high wings.
(3) DO NOT disappear under my nose to put a towbar on the nosewheel or to put chocks under the nosewheel or mains. Stay where I can see you. (Excluding emergency situations, no tugs, handpull only, if it needs to be tugged somewhere I'd rather taxi or do the pull myself)
(4) Don't walk in front of the plane (always behind). NEVER touch the prop. Just stay back and don't touch anything until I say it's ok.
(5) I do the tiedown myself even if the Atlantic Ocean is being poured through a sieve on my head. Don't redo the knots, mine are secure. Don't untie it unless it's an emergency such as something about to run over my plane at which time I will thank you for your excellent foresight. (If you have to untie it, call me at the number I gave you and I'll come back out and tie it down again) I also bring my own ropes. If I don't trust your rings, I'll park in the grass and use my own screws.
(6) Refuel only when I'm present at the airplane. I prefer you to just hand me the ground clip and hose and talk about the weather and what a wonderful day it is to be flying. I put the oil in.
(7) If the plane is alone and facing immenent disaster, do whatever needs to be done. Don't let it just sit there.
My airplane, my responsibility, not theirs.