sentences:  Smaller concerts were often held in public venues like community, church, school or local council halls, and larger performances (like tours by visiting international acts) were staged in major concert halls or sports stadiums.Some concerts were staged in licensed premises, but the vast majority were in public venues open to all ages, and alcohol was unavailable.By the late 1960s, Australia's "baby boomer" pop audience was ageing into its late teens and early twenties.