I think what stops people the most is that there is no perceived value into switching to bitcoin. Not many online stores take the currency. And even if they did, it adds no benefit to most users.

If the common man or woman wants to buy something off of overstock.com, it is simpler to just use their credit card and then pay it off.

Some people calculate all pennies they saved ,they will use bitcoin if they get introduced to it,but the big fact is bitcoin is related to porn and black market,currently bitcoin is being avoid by governments to show off what it is.Someone said about chargeback well bitcoin doesnt allow to that happen,to get scamed, you get with fiat and now with bitcoin is possible as well the difference is that you can trace the funds with bitcoin,and with fiat you wont know where they are.

because it is not exactly the simplest currency to buy daily needs with, and buying in general is not easy

that's not what I mean necessarily, acquiring bitcoin itself takes a few days (for amounts over $1k anyway) due to bank transfers...
Right now I can't see anyone going to the grocer and using bitcoin, because no one accepts it. I'm talking in current tense, not future. If markets accepted btc then sure this would be a soon reality and you are right, but what I am saying is what you said, not all merchants are ready.

I think it is a wrong assumption that something is preventing people from using bitcoin.In my own experience,whoever learns about bitcoin,wants to earn it but due to its price volatility they dont want to spend it.I think the question of this thread title should be rephrased as "What is stopping people from spending bitcoin? "

Most people don't use bitcoin because they either are not aware of it or don't know how to use it.

It's possible that they don't have any knowledge about or just afraid to use it.

For some people it's hard to adapt to something else when they're used to something they've used all their lives.

I think the main reason for people not to use bitcoin is because they're not used to it. Also because I think it's not mainstream, once bitcoin takes off more commercially more people will start to use the bitcoin.

Yeah but i think it is also a good thing that not so many people knows about it. Once it go popular we dont know what might happen. It might start going down because of many people using it. It just unpredictable what might happen.

This is one of the biggest problem of bitcoin. When paypal integrates bitcoin into its payment system, this problem can be solved.

people stopped using bitcoins because they are afraid with the consequences whenever they are using bitcoins.