stolen phone
my phone has been stolen on 28.06.21 around 17.00-17.15. I already changed apple and icloud password. The question is when i look into Find my iphone it's always offline if it's possible that i forgot to go to turn on my location for find my iphone on Setting or the thief has turned off my phone? I have put on Lost mode and Play sound but since it's been stolen i havent got any notications yet. I believe that they could take my sim card out and probably put on wifi if that's the case from find my iphone still shows ''offline''?
thanks
iPhone 11 Pro Max, iOS 14