India is a country with most of its area falling in good and pleasant weather conditions (all season). In a hugely populated place, managing crowd in indoors can be difficult. To many it may create the feeling of stress and anxiety. In general, we don't need fixed indoor infra instead we feel comfortable open and convertible infra. For e.g. most people in India enjoy festivals/fair seasons which are performed outdoor and are always in portable and convertible format based infra. So why to waste money on costly infra and raise the costs.. better to stay with low costs sold in classical infra.