For one, on land, they had resources - food, water, and shelter. They'd have had considerably less being adrift at sea for days, and starting from a remote location which may not have been near any shipping lanes. Second, what were they going to build a boat adequate for the whole group with?
Simon helps Ralph build shelters in Chapter 3 of "Lord of the Flies."
he f0cks himself
nothing beside help and support
make a fire on the hill.
because they need rescued and when piggy was there he made an effort to the make fire. and he help to Ralph for rescued and he was for Ralph mate.
In chapter 8 of "Lord of the Flies," the boys who stay with Ralph are Simon, Piggy, and Samneric. They choose to remain loyal to Ralph and help him maintain order on the island.
This is pretty obvious. Everyone who read the book should know that they try to build up a big fire on the Island so that any ships passing by can possibly see the flames and know there is someone on the Island.
Piggy and Samneric are the two "biguns" who have remained with Ralph throughout the novel "Lord of the Flies." They provide support to Ralph in his leadership role and help maintain order among the group.
They didn't help set up the huts Save
Ralph defends Piggy from Jack when he refuses to help with the fire. Ralph argues that Piggy contributes by thinking and suggesting ideas, even if he is physically unable to help. Ralph recognizes Piggy's value to the group beyond just physical labor.
Piggy supports Ralph as the voice of reason, offering logical advice and ideas to help maintain order and prioritize survival on the island. He acts as Ralph's closest advisor and confidant, providing intellectual and moral support throughout their leadership challenges.
At the beginning of chapter 10 Robert was on guard duty, in charge of levering a boulder from the top of castle rock on to any would be attacker or the beast. A little later Jack selected Robert and Roger to accompany him on a raid to 'get fire from the others,' which resulted in the theft of Piggy's glasses.