>>9444
>>Knowing the weight and strength of a character also gives people a concept of the agility of the character without needing any other numbers to be given.

If your characters are normal human then yes, this is totally fine, but I suspect that fantasy character looks do not represent their strength or abilities and the fighting outcome is also pretty unrelated to all those stats as well. It is practically all luck based.
But of course, if you only provide basic info like age, sex, size, you will describe a normal human being and its strength can be just assumed to same as every other human all that data is just cosmetic.

And if you expect people to calculate things from the character body size that requires even more math ;)

Using percentage is simpler because you just adjust some standard character, it is way easier to compare them and you avoid problems with different measurement units. (Some people prefer pounds other prefer kilos)


>>Wouldn't people more likely prefer to measure breast size by cup size? That seems to be the system in use in popular culture.

Not everyone is aware of those cup sizes ;) and they are too similar anyway. In fiction, we need to use a logarithmic scale instead of linear cup sizes. (so that each next size represents doubling)


>>Just because numbers can be good doesn't mean everything should be numbers.

Of course no, I just gave an example on how they can be used creatively for fun to make some challenge to the reader to decipher their meaning
This was done in the Mahoujin Guruguru anime one of the episodes where characters were given some strange stats
You do not need strict rules here and sometimes it is better to leave things unclear for more room to interpretation