What again?
a) A shopping mall is a commercial not a social venture... with limited space they are going to let those in that they think will spend.

b) Some single males do harrass as EE pointed out - there have been complaints

= people with no money who deter the ones with money from spending are prevented from going to a commercial place.

Khallas.....
Saint you will save a lot of money in Doha by boycotting the malls.