I'm not good at persuading people to buy something.
>> Correct!
OR: I'm not very good at convincing people to buy things.
So I want to sell products that need less marketing skills.
>> Correct!
OR: So I want to sell products that require little expertise in marketing.
And I think stationary store will be a good choice.
>> Correct!
OR: And I believe a stationery store will be a good choice.
When people visit a stationary store, they already firmly decided what to buy.
>> Correct!
OR: People go to a stationary store knowing exactly what they want to buy.
It means they will buy or will not buy something regardless of what I say.
>> Correct!
OR: It means that they will buy or not buy something regardless of what I say.
Also, most products sold in a stationary store are cheap so most people don't deeply ponder whether to buy it or not.
>> Correct!
OR: Furthermore, because most products sold in a stationary store are inexpensive, most people do not give it much thought before purchasing.
So I don't have to get into their decision process.
>> Correct!
OR: So I don't have to get involved in their decision-making process.
In conclusion, I want to own a stationary store if I have my own store because I don't have to persuade people to buy something.