Cats summer

In the cold of the winter, Minh asked his mom:
- Mom, we wear a lot (many works, but when I hear this I think of different types of clothes as oppose to the person being very covered in clothes) of clothes but we don't feel warm. Cats don't wear anything, why don't they shiver from being cold?
- You are silly. On their body they have a lot of hair(this is the same, you can say "many" and it works fine.  Actually saying many sounds articulate.  I changed it to "a lot" because that is what I'm used to hearing in a situation like this.  When I hear "many" I don't think of something as large as the number of hairs on an animal), it is possibly as thick as our clothes. Can they still feel warm?
A few months after, one day the mother went home from work, she saw that the cat from the house ran out, she was in a panic and exclaimed:
- Oh my God! Where was the cat hair fall out?  (Do you mean "Where was the cat when it's hair fell out"?)
Minh from the house went out and said calmly:
- Now, the weather is very hot. The skin (leather usually refers to skin of animals that people wear or use after it has been treated with chemicals) of people isn't tolerable. The cat has many hair, maybe it felt very hot, i helped it cut all its hair. 

I'm from Kentucky in the USA.  What sounds normal to people in places like Singapore, Australia, or India may be different.