Do I really need mixing bowls with non-slip bases?

Reviewers across r/Cooking and r/BuyItForLife consistently flag non-slip silicone or rubber bases as a meaningful quality-of-life upgrade, especially for whisking, hand-mixing dough, or working on smooth countertops. The trade-off mentioned in community threads is that silicone bases can trap water and dishwasher detergent smells, so some users prefer to hand-wash them.