I mean, sure. But the point is to make the problem accessible to the reader, not to obscure it through the ton of variables present in real life. Which actuall

I mean, sure. But the point is to make the problem accessible to the reader, not to obscure it through the ton of variables present in real life. Which actually goes back to the t-shirt example. If we had to consider a real cow every time, nobody would want to study engineering ¯\_(ツ)_/¯