After completing 31 years of retailing in nearly every genre of shop there is except porn, alcohol and tobacco, I would not open a brick and mortar shop. Online is so much easier and has little overhead as compared to the hoops you have to leap through in the "real world".
I pondered many types of shops throughout my career (thankfully not completing the purchase of the video rental store in 1992) and determined that I could earn more "working for the man" as a manager or district manager than I could as a shop owner.
I have just returned from a visit to my father's town and where I grew up. Most of the "mom and pop" stores that my former employers and friends owned for many years have been swallowed up by the big box stores.
Now that it has been nearly a year since I last worked in a "day job" I would not turn back for anything. Just being able to set my hours, work when I want, how I want and if I want makes all the difference in the world to me.
Not trying to dash your dream, just how I feel and what I saw since I entered retail in 197x <--- not telling or dating myself
We did sell vinyl records and 8-track tapes though. And calculators had 4 functions and cost more than $50 USD! lol
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"If you shoot for the stars and hit the moon, it's OK. But you've got to shoot for something. A lot of people don't even shoot." - Confucius