Is it important to reply to text messages? Why?

Personally, I think it is very important. If others or even more intimate people don't reply to text messages, everyone will think that they are worried about whether they haven't received them. Is it because the other person doesn't want to pay attention to himself? This kind of behavior is very bad for others, which will make them think about it all the time, and if you think it's nothing, it will make people even more angry.