同一句子可以有兩個preposition嗎?

There is "a difference of" lifestyle for everyone.
"phrase"=a difference of=lifestyle of difference=what a difference for everyone.
A prepositional phrase=a preposition and the noun following it, eg:-of lifestyle; for everyone.
preposition (grammar) is a word or group of words suitably used in a sentence,eg:-in,of,for,from,to,out of, and on behalf of,used before a noun or pronoun,word or group of words to show place,position,time,manner, condition,or method.

例1. I want to try to touch on the design and lifestyle of Northern Europe. ←← 只要符合文法的話，並無限制一個句中的介係詞的個數。
例2. Everyone's lifestyle is different.
例3. Everyone has their own lifestyle.

可以，但你寫的句法不正確亦誤用了

different lifestyles是表達"不同/多種的lifestyle便是眾數
假如你以為用了different of lifestyle便等於同樣意思便不對，正如你句開始應該想說是It一種，但different lifestyles便必定不一種for everyone。
因此這句的問題不是是否可用兩個pp而是你寫的句意本身便錯是"主旨/主詞"。

嘗試修正，但可能不是你的原意：
There are different lifestyles for everyone.
It is of a different lifestyle for everyone. [假設前文已說明不同的lifestyles，這句的it是指前文的對不同lifestyles配不同人的理論，而不是指個別不同的lifestyle](這句在文法或句意上亦可能是錯的，只是示範用兩個pp)

可呀。
對每個人而言，都有生活方式的差異。
There’s differences of lifestyle for everyone.

Amendment: As we know that everyone has his own lifestyle. Yip