Tyga too?

We don't know how true this is but apparantly Tyga, of Young Money is hitting Johannesburg at the end of this month(27 August to be exact). Now... We understand promoters have the right to set their own terms and conditions for their and that alright. Not cool but alright... Can somebody explain why doors to this show open at 21H00 for ladies only and at 23h00 for dudes????