Bridesmaids and Best Man

Me and my fiance have decided not to have any bridesmaids/MOH or groomsmen/best men at our wedding. I wondered if anyone else is planning on doing the same or has previously done the same? I personally don't have many really close friends and my closest ones may not even be able to make it anyway. My fiance doesn't feel he has someone close enough to be a best man, a lot of his friends aren't even interested in the wedding at all. I feel like it's always assumed that you have to have bridesmaids and Best man but we don't want them just for the sake of it. I will have my mum with me to get ready and that's really all I need for support on the day. I'm a little concerned as my fiance lost his dad when he was young so doesn't really have anyone to be with him on the morning of the wedding day though, but he gets on very well with my dad and brother. Just wondered what people's thoughts are on it.