No need to use one if you don't like them.
But I'll point out they're far more useful than just as a singer of songs. They also get mage spells, and since they level fast, they get access to higher level spells fairly quickly. As a secondary caster, they're pretty good. Also useful as a ranged combatant. I tend to use slings with my primary warrior types, since you can use a shield with them and this makes it so much easier to switch out your weapons. So the Bard can use any nifty bows or crossbows you find. There are also a few Bard-specific items that are quite nice. I also like using them as my pick pocket, which means my Thief doesn't have to waste points in that skill. Finally, there are a couple Bard-specific XP awards early on that are nice to pick up, although on its own, that's hardly a compelling reason to have one in the party. Still, if you look at the other benefits, it's a nice perk on top.