If a kitten keeps meowing when it arrives home, you should respond to it. The kitten is not used to being home yet, and you need to let it gradually adapt. However, you shouldn't respond to it every time it meows; you need to cultivate good habits.
The reason why the kitten kept meowing after arriving home:
1. I called you over:
Some kittens are born with a strong love for people and enjoy playing with them, so they will meow constantly, hoping that their owner will come and spend time with them.
If your cat is like this, be sure to spend more time with it and let it get used to you. 
2. Feeling fear:
When kittens are first brought home by their new owners, they may feel scared and cry out because they cannot adapt to the new environment all at once. Usually, they will get better after a few days once they have settled in.
At this time, the owner can make a cardboard box cat bed for the cat so that the cat can hide inside, which will make the cat feel safer.
3. Calling for Mother:
After kittens are taken to their new homes by their owners, they will miss their mothers very much because they are used to sleeping and nursing next to their mothers and will feel insecure when they are separated from their mothers.
So the kitten keeps meowing, trying to get its mother to hear its cries.
4. I want to go home:
Kittens are usually brought home by their new owners when they are 2 to 3 months old. During this time, they will treat the pet store as their own home.
So when you bring the kitten home, it will meow and want to return to its familiar environment.
5. Don't want to be locked in a cage:
Many people put their kittens directly into a cage after bringing them home, which makes the kittens very panicked and causes them to meow incessantly.
Before they adapt to a new environment, kittens want to find places where they can hide, which makes them feel safer.
6. Physical discomfort:
If a kitten is unwell, it will also cry incessantly. Kittens have weak immune systems and are prone to illness, so they may cry incessantly.
