Who or When or How was the Time Taken Decided for Adulthood?

[Sunrising]

Animals need to become adults very quickly, humans need much longer, have you ever wondered why?

A. Adulthood couldn't be any quicker with humans.

B. Whoever created life decided the time taken to become an adult.

C. The Time Taken for Adulthood was because through natural selection.

D. Something else.

Updates

10 mo

When I was at school there was someone in Kindergarten twice the size of anyone else, and the same at Junior High School we played sport against other schools with an adult size pupil in their team, much bigger than we were.
Did you come across anyone like this at your school?

Updates

10 mo

Did you know animals are born precocious, meaning they're born relatively mature and mobile at birth, with developed instincts, enabling them to find food and shelter or to escape predators almost immediately.
Humans are an altricial species that are born undeveloped.

[OlderAndWiser]

It takes humans about 18 years to reach physical maturity.

[Sunrising]

But who decided that?

[OlderAndWiser]

If you are Judeo-Christian, God decided. Otherwise, it’s the random factors in evolution.

[Sunrising]

Some animals are born precocial and can find for themselves shortly after birth.

[Sunrising]

AI should be fend

[XXblack88]

Honestly I'm not sure how to answer this question causes while 18 is when I physically became an adult 25 was the beginning of mentally becoming a adult.

[XXblack88]

Nope I didn't I was average size in high school. however I always had a tendency to hang out with people 2 to 4 years younger than me so I was the biggest in the group

[Sunrising]

At Kindergarten and Junior High I was one of the tallest in my class, and at 14/15 I think I was full size.

[Sunrising]

What I'm saying is possible some people were adults physically at 5 years old. But they got picked on by older children because they were mentally a 5 year old.

[Flower7]

It has to do with total lifespan.

[Sunrising]

Elephant live 60 or 70 years in the wild.

[Flower7]

That is less than the expected amount of years for a human.

[Sunrising]

I think you are splitting hairs 🤣

[Phoenix98]

Mentally our minds are more complex.

We don't reach physical maturity until 18 years old.

[Xawyx-2]

It's decided through natural selection, humans evolved like that.