Everybody has a bike there but not everyone use it dailyObserving bikes with grass growing inside them certainly indicates that they have been neglected for a significant period. While I can’t provide an exact timeframe, the presence of grass suggests that these bikes have likely been unused for a considerable amount of time, potentially several months or even a year or more. The exact duration would depend on various factors such as climate, maintenance, and the rate of grass growth in that specific environment. However, the fact that grass has had the opportunity to grow inside the bikes implies a prolonged period of inactivity.