The decision to stay open is up to each business. Non-essential businesses may not need to be open. Will your employees be able to get to work? Walk through your daily activities and think about what may not be available on April 8 due to the influx of people. How well will your business operate if you need internet, cell phone service, or even gas?
If you choose to stay open, please ensure you are prepared. Also, this is your opportunity to think outside the box for businesses that remain open. Consider what services and/or products may not be readily available and provide them to improve your customers' experience.