Koreans use it when they cannot find their way and need to ask for directions politely.
Yes. "길을 잃었어요 (gireul ireosseoyo)" is polite and natural. You can also say "길을 잃었어 (gireul ireosseo)" casually.
You can say "I'm lost" — 길을 잃었습니다 (gireul ireosseumnida).
길을 잃었어요 means "I'm lost". It's a polite way to ask for help when you can't find your destination.
1. On street / Subway: Can't find exit or address.
2. Travel emergency: Asking stranger or police for help.
3. On phone: Telling friend you can't find meeting spot.
I'm lost. Please help me.
Excuse me. I'm lost. (Formal)
Hey, I'm lost. Where are you? (Casual)
It's this address, but I'm lost.