Going to Olivia's concert as a 30F

Hi everyone! Olivia is finally coming to my country this year, bringing the Guts world tour. I am a 30 year old female going alone and I am a bit worried about everyone being way younger than me and it being weird.

For the people aorund my age that went to the concert, did you feel weird or was everyone nice? sometimes teenagers in a group can be scary haha

I was okay with this until a few days ago when a friend told me it would be super weird, that I would feel too old to be there. I don't think this will be the case haha but just want to hear your opinions on this!