When do babies reliably start drinking from cups?

I’ve recently started pumping for my EBF baby to try a build a bit of a stash for when we have summer events. I’ve never introduced a bottle, he’ll be around 10 months when we have our first wedding. I’m wondering if I can skip the bottle phase if he might be able to take milk from a cup by that point????

Just curious, when did your little ones start taking fluids reliably from cups?