You’d have to ask them. Sharia law is not commonly known in the UK. Not many people know what you’re asking of them, especially when we live in a society of set rules that have been established and that we’re used to. If something is wrong now, will it still be wrong in the regime? At first glance, it’s not clear what the differences are. There are things that we should do, things that we shouldn’t do, and things that are of no consequence whether or not we perform them. More knowledge is needed before you can convince people that other ways are better. Prayers can be thoughts, but you could be waiting a long time to eat, and you may have to get up earlier. It would also make eating out very difficult, and not everyone can afford a pilgrimage. Grants would have to be created for this purpose. But I think we can get away with the rest.