People find this acceptable because it is common to use mass and weight as synonyms even if they are not.
In physics, mass refers to the amount of matter, due to this, mass is often measured in:
On the other hand, weight considers gravity or the force gravity exerts on an object, and due to this it is measured in newtons.
Even if weight and mass are different, people often use the word "weight" to refer to the mass, that is why statements such as the above are acceptable. However, if you are a physicist this would be incorrect.
Learn more about weight in: https://brainly.com/question/23312072