To understand why small businesses need local SEO it is important to understand what local SEO is, how building the local business on Google drives customers & how GMB is Google's way of helping small businesses. You need local SEO services so that your target local consumers looking online for your services can find you. With better local rankings, your page visits, as well as your conversions, will increase.
Are you local Business competing with National Brands?
Like you, most of the local businesses suffer due to fierce competition of big brands operating next door. Revenues have been dwindling, customers are gone and margins have shrunk. For other few local businesses, growth has stagnated and they are not growing as much as they would want to or could have potentially grown given the equal ground and budgets of big brands.