Meaning of the word "life isn't all beer and skittles" in English

What does "life isn't all beer and skittles" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

life isn't all beer and skittles

US /laɪf ˈɪzənt ɔːl bɪr ænd ˈskɪtəlz/
UK /laɪf ˈɪznt ɔːl bɪə ænd ˈskɪtlz/
"life isn't all beer and skittles" picture

Idiom

life is not always easy, pleasant, or full of fun

Example:
He soon discovered that being a professional athlete isn't all beer and skittles.
I know you want to travel, but life isn't all beer and skittles; you need to work too.