It’s increasingly unlikely in this day and age that people will just hit the shops and hope to find something suitable. People generally do their research first and compare prices or availability across several stores, physical or online, and decide on the best match for their needs. Even if you have precisely the product they want, at the right price and in the right quantity, they’ll never know and buy elsewhere.
Online shopping is an enormous time saver for people, and they will often spend their evenings browsing online to make sure that they target their lunch time shopping trip to make sure that they get exactly what they’re looking for quickly. There are also many benefits of selling online, but that’s a topic for another article.