I meet a lot of ordinary people who cycle and have bought a bike (usually on the bike-to-work-scheme) from Evans or other chain stores and they generally know nothing at all about bikes. Most could hardly point to the gear cables on their bikes. Many would not know what size of bike to buy or where to set their saddle height. Buying in a shop is really helpful for these people - but it doesn't have to be an LBS.
I meet a lot of ordinary people who cycle and have bought a bike (usually on the bike-to-work-scheme) from Evans or other chain stores and they generally know nothing at all about bikes. Most could hardly point to the gear cables on their bikes. Many would not know what size of bike to buy or where to set their saddle height. Buying in a shop is really helpful for these people - but it doesn't have to be an LBS.