Homo heidelbergensis. Image courtesy of Benoît Clarys/University of Tübingen.
The answer varies.
According of some evolutionists, early humans were in the trees, just like apes
and learnt to walk on two feet, but they did not have fur, so that clothing became
important,
As early humans evolved from ape-like ancestors, they
came down from the trees, began to walk upright and lost their fur. But without
fur, our ancestors would have been exposed to the elements. They would have
needed clothing for protection.
Some
evolutionist propose that some 1,2 millions years ago we lost our fur, but lice was a problem, so they started to wear
clothes,
According to the
real history in Genesis, men and women started to wear clothes after the fall
in Genesis 3.
Source:
Ashley Hamer. 2024, When did humans start wearing clothes? | Live Science 10 March.