What's the difference between そうです and そうでしょう?


In 『よつばと!』, よつば says 「ここ家がいっぱいある」 to which her father replies 「そうだろう」.

What's the difference between そうです and そうでしょう? I know when we use そうです but I
can't figure out the other. I know ましょう is used to suggest stuff, but I don't
know how it fits with そうでしょう.




～だろう/でしょう in this context does _not_ represent the uncertainty or guessing of
the father. This actually is a strong affirmation of the Yotsuba's
observation. I would translate this そうだろう as "Indeed," "Exactly," "Just as you
say," or simply "Yup." I feel translating this as something like "So it seems"
or "I think so too" is too weak.

If Yotsuba's father had said そのようだ or そうみたいだ, then it would have been "So it
seems." Or if he had added extra words and said 多分そうだろう or おそらくそうだろう, then of
course it would have meant "Probably it is so."

Then, what's the difference between "そうだろう/そうでしょう" and "そうだ/そうです" in this
context, when both versions represent almost the same level of certainty?

>   1. Customer: あら、この財布は安いわね。  
>  Shop staff: そうでしょう！
>
>   2. Customer: あら、この財布は安いわね。  
>  Shop staff: そうです！
>
>

In both examples, the staff strongly assures that the wallet is a good deal.
But I feel the shop staff is a bit more friendly in the first example. Maybe
it's related to euphemism?

> よつば: ここ家がいっぱいある！  
>  父: そうだろう。

Hmm. I would say this そうだろう is a bit more friendly version of "そうだ", but a bit
more dignified/paternal version of "そうだね／そうだな". Anyway, the difference is not
in the level of certainty.

