You're right, those are indeed the most common reasons as to why people don't get into bitcoin.
Some people know but they just simply don't believe how much potential bitcoin has

Confirmation is the minimal issue, but the main reason behind stopping people using bitcoins is the awareness level as very few people are aware about the bitcoins in the surrounding, we want that the adoption level should be high but we don't let them know that we are holding bitcoins as we don't want that they should also start earning bitcoins and that is the human nature, we are only concerned with our success and our earnings.

Yeah I don't know where this comment is coming from. Normally when being in a shop, you just scan the the QR code and transfer your coins.

From there you are good to go. No waiting list for people who paid with bitcoin.

i think its the possibility that bitcoin price can decrease very fast

i think the main reason is price fluctuations

I think people find it more convenient to use fiat. That is what is stopping people from using Bitcoin. Why would I go to a store that accepts Bitcoin when I could simply go to a store that accepts normal currency.

for small things there is indeed no need for confirmations. if the amount is higher than $50-$100 then they may ask for at least 1 confirmation. once i go to that cafe again i will ask them what their limit is for no confirmation payments.

But in my locality most of people are aware about Btc and its usage. When I offered some of my online employees in terms of BTC, they all refused to accept being doubtful of its security. No doubt it is gaining popularity in countries like Indonesia but its ban in some nations and lack of stores accepting BTC in others stop people from using it.

I think a lot of people know about and of bitcoin. I think they just simply don't believe there's a future in bitcoin.
Some don't want to waste their time on something they don't believe in. Some know about it but don't want to use it since all they hear about bitcoin is that it's being used for criminal activities.

I dont think Bitcoin ATM will help, these have so high fees it is basically the same or worse as credit card fees. Without getting paid in Bitcoin, it does not make economical sence buying Bitcoins at ATM in order spending these Bitcoins.