How do you feel about a 31yr old man calling his parents, “mommy” and “daddy”? Am I a bad person for ending our friendship because of it?

We’ve been very good friends for three years. Last night I met his parents for the first time and he introduced them as his, “mommy and daddy” and kept calling them that! When we said our goodbyes, I told him I can no longer be his friend. When he asked why, I told him straight out, “because you’re a 31yr old man that still calls your parents mommy and daddy”! Am I wrong for feeling this way? Please understand, I do not have a problem with women referring to their parents this way, only guys.

How do you feel about a 31yr old man calling his parents, “mommy” and “daddy”? Am I a bad person for ending our friendship because of it?
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