That’s right. There is no such thing as normal in our world. That’s because the standards for normalcy shift or evolve as time passes. For example, not too long ago American society was a lot more conservative and moral than it is today. Immoral acts like premarital sex and adultery weren’t accepted by the mainstream society. This was normal in those days. But now the standard has changed and American society is much more liberal and accepting. As a result, average people are no longer shocked when they hear about other people cheating on their partners or having sex before marriage. In fact premarital sex is accepted so much right now that more than 90% of Americans engage or are going to engage in sexual relations before marriage. As you can see this is the new normal today unlike in the old days.
Another reason why there is no such thing as normal is because the standards for normalcy differ from one culture to the next. For example, most Americans frown upon an idea of eating insects and find it disgusting even though insects are an excellent source of protein and eating them has many advantages over eating other kinds of food. On the other hand this practice is widely accepted in other cultures and many people love eating insects outside America. Because of all this, eating insects is not normal in America but perfectly normal in many other cultures.
There are plenty of other reasons I can think of to prove that there is no such thing as normal. I think you probably can too if you think long enough. That’s why try not to judge other things or people that are different from you and seem “not normal”.