I am going to explain about one area of not being able to decide. I am sure that we have all gone shopping with someone who tried something on liked it and couldn't simply say she or he would like to buy it. What is going on here is called an indecisive shopper. More often than not that person is being this way because they want attention. They like it when someone keeps asking them are you going to purchase that item.
I don't think I agree with this theory but let's say I do. So, okay, smb went shopping with their friend & that smb. can't decide which shirt to buy. S/he does it to get attention. What about people who like to go alone? F.ex., I like to go alone as a rule. Friends usually would force their own taste in clothes. As if they're gonna wear your newly bought clothes. Stupid tradition. Anyway, whose attention might I get in this instance if I go alone? And I sure as hell
don't like when people keep asking me would I buy this item. I say usually, "I can't decide. I'll look around for other similar models". It is my right as a customer & if I like both & can't buy just 1 thing but at the same time, I'm being greedy, then the indecisiveness must be understood by shop assistants. I give my own money, not from their pockets, so please, bear with me, okay? It's not professinal to show annoyance & hurry the customers up to pick fast. It may be simple to *you* to just "buy the item they like and go to the next store". For some it's not.