They obviously don't need to be multi-billion dollar stadiums. They can be temporary structures or outdoor areas. 120k people watched Elton John on the main sta

They obviously don't need to be multi-billion dollar stadiums. They can be temporary structures or outdoor areas. 120k people watched Elton John on the main stage at Glastonbury last year, twice as many as attended most of the dates for the Eras tour. While not everywhere will have a space that's suitable for a 40-60k outdoor stage, a good number will.