You don’t need to have a wedding program. They seem to be a fairly recent trend. All through the 80s, when performing weddings in non-church locales, people managed to get married without them.
I succumbed, I admit it. But my wedding ceremony was involved and had responsive readings. (I am the Wedding Priestess, after all!)
But if your wedding ceremony is straightforward, you don’t have to have one. Your bridal party will be introduced at the reception. And they’re not inexpensive, even if you design them.
Tip: consider whether or not you’re having wedding programs because you need them or because the wedding industry thinks you need them.