This is not entirely correct. The hobbits were very good with slings and spears and bows according to Tolkien.

Before the events of The Lord of the Rings, hobbits maintained a tradition of archery and other martial skills, partly due to past conflicts such as the Battle of Greenfields (1). By the time of the Scouring off the Shire, Merry, Pippin, and other veterans of the War of the Ring organized quickly taking up arms. According to the appendices, they managed to eliminate nearly two-thirds of Saruman’s invading force , displaying both tactical coordination and surprising courage. (Treebeard also notes this in The two towers) It’s a powerful reminder that, in Tolkien’s world, even the humblest people are capable of heroism when defending their home.

1. https://lotr.fandom.com/wiki/Battle_of_the_Green_Fields