What age are you no longer a “young adult”?

I saw a post where people were arguing what age you are no longer a “young adult”

I say young adult is your 20s. Once you’re 30, you’re an adult adult.
some people were saying under 35, some people were even saying under 40. I can understand 35 but 40? Calm down grandma 💀 imagine pushing 40 years old and still calling yourself a “young adult” lol embarrassing.

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Not some of y’all getting offended about me calling 40 year old grandmas lol I’m well aware that 40 is too young to be a grandmother, ‘‘twas a joke luvs
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I don’t get how the opinions saying 25+ are no longer young adults (and they’re not wrong) but the opinion saying once you lose your virginity is when you’re an adult, doesn’t have any lol
What age are you no longer a “young adult”?
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