Just because you think it shouldn't does not mean it actually is like that. The Hillsborough campaigners and people that were affected will always have a voice in this.
Theres no issue when stands are half-empty like is usually, but in the cases of matches where grounds are reaching capacity you do need some form of control there. Of course we're never going to have another Hillsborough with rid of the silly fences, but there will still be havoc in the stands if there is nothing to limit the crowds in there. There are many ways it can be easily done, but that doesn't mean if safe standing is to be introduced the government and football league shouldnt do it properly, investigate it and lay down the requirements for all clubs to meet should they want standing. Not all clubs are fully competent afer all.