According to some reports 800+ people have been arrested in Riyadh for wearing low-slung jeans and sporting Afros in Saudi Arabia. Mosques in the Eastern Province have warned people that they will be banned if they are caught with either at prayer time and can also be arrested.
The youth arrested were released after their parents were called to get them and after they promised to never do it again. What is more likely: the youth will change their style or avoid the mosque?
An unanswered question is why would a mosque ban a worshipper? Common sense says that if a person if coming to the mosque to pray you want to encourage their good behavior, and use the opportunity to educate them (without the fire and brimstone style boring lectures of course). Crazy fashions are a part of youth and people outgrow them with age.
But banning these young men from coming to the mosque helps neither the youth nor the society. Associating the mosque with an oppressive environment where a person can get arrested for wearing the “wrong” clothes is not conducive for a longer term attachment towards religion, or even respect for local traditions.
An educational approach would be more effective in this case rather than draconian measures.