What reasons does Jem give for waiting until the last night of summer vacation to approacn

the Radley house?

No one will see them trespassing and Atticus was spending the night reading where the reasons Jem gives for waiting until the last night of summer vacation to approach the Radley house.

Explanation:

Jem mainly fears if he gets killed he won't miss summer vacation but would miss school.

No one will see them trespassing and Atticus was spending the night reading where the reasons Jem gives for waiting until the last night of summer vacation to approach the Radley house.

When Jem and Dill decide to sneak out and peep into Radley's house, they are questioned by Scout. And Dill and Jem explains Scout that no one would actually find them trespassing and also the fact that Atticus would not be able to hear anything as he was spending his time studying.

Their only problem was even if they were getting killed by Bob Radley, they would probably miss school but not the summer vacation.