Does a physical products business has to have a specific target audience?

[RisingStars]

Since my last thread, my fear that not beeing part of my target audience would be bad in some way got crushed. Special thanks to @MTF and @Andy Black
As said in my other thread I have currently two physical products which solve a need for people with fish tanks but also fall into a certain kind of product group which got room for expansion in this direction.

I've did a lot of research and most ressources on the internet state that physical product brands need a specific target audience to succeed.
e.g.:
Business A: Sunglasses for bikers, Sunglasses for truckers, Sunglasses for surfers... = bad since no specific target audience
Business B: Sunglasses for bikers, Shirts for bikers, Gloves for bikers... = good since a specific audience (bikers)

Provided that both businesses solve a need in the products they sell, is Business B more likely to succeed?
Do you know any resources which favor the "product type" approach or do you own a business like "A"? I believe that a lot of modern marketing methods fail with this kind of approach and a specific customer audience would be better. What do you think?

Some resources for the "target group" approach:

Don't Invest in Branding Until You've Done This
How to Define Your Target Market
The Importance of Really Knowing Your Target Audiences

 

Dislike ads? Remove them and support the forum: Subscribe to Fastlane Insiders.

[Andy Black]

Since my last thread, my fear that not beeing part of my target audience would be bad in some way got crushed. Special thanks to @MTF and @Andy Black
As said in my other thread I have currently two physical products which solve a need for people with fish tanks but also fall into a certain kind of product group which got room for expansion in this direction.

I've did a lot of research and most ressources on the internet state that physical product brands need a specific target audience to succeed.
e.g.:
Business A: Sunglasses for bikers, Sunglasses for truckers, Sunglasses for surfers... = bad since no specific target audience
Business B: Sunglasses for bikers, Shirts for bikers, Gloves for bikers... = good since a specific audience (bikers)

Provided that both businesses solve a need in the products they sell, is Business B more likely to succeed?
Do you know any resources which favor the "product type" approach or do you own a business like "A"? I believe that a lot of modern marketing methods fail with this kind of approach and a specific customer audience would be better. What do you think?

Some resources for the "target group" approach:

Don't Invest in Branding Until You've Done This
How to Define Your Target Market
The Importance of Really Knowing Your Target Audiences

I get a sense you're spending more time than you should doing research and giving too much store to what you find.

Personally, I prefer to ignore what people write and spend my time engaging the market and learning from them.

I've a few posts that might help:

• Launch & Learn
• How to get profitable or fail fast with AdWords
  
• Calls with @Scot