Is anyone else almost treated like a child because of your looks?

By that I mean I’m an adult. And yet others talk to me like I’m a child. I’m almost 30. And if I tell someone oh I’m excited for this thing or whatever the reaction I get is “oh I love that for you” (in a non genuine way) or they talk to me like I’m a child telling someone about my new light up shoes. I don’t know exactly how to explain it. But the overly like enthused “oh wooow that’s soooo cool”. All I can surmise is it’s because I look like a little ugly goblin freak show. That suddenly everything I do even in earnest is “cute”