Thanks a lot for the recommendation, I was torturing myself with the same question, not seeing enough places, where I can spend my Bitcoin.

Unfortunately the problem is more complex than that. This is true that media throughout the world try to discredit bitcoin as having no official government support, but to the people well informed it would be just FUD. So lack of trust is not the reason behind low acceptance.

The problem is that the fees for spending Bitcoin are very high. You will buy a coffee for 2$ and spend 20-30$ on fees. Some merchants and services (Steam is the most notable) that previously accepted bitcoin - stopped doing it. I have read in some other thread by German user, that Berlin was full of places that accepted bitcoin and it is no longer the case now.

The only hope is the Lightning Network, which may create channels to spend bitcoin with no fee. How this will play out - we shall see in the future

Many people (if not the majority) really use Bitcoin as the coolest stuff for making investments. Bitcoin fans believe that this coin will grow and bring huge profit.

It will do it, sure, but you can use BTC for other things: https://www.youtube.com/watch?v=7ixhnBB_iCA (Where To Spend Your Bitcoin - Top 5 Places Online)

Transaction fee is on the way down at the moment, so transactions are becoming cheaper compared to the end of last year, you don't have to pay 30$ on a transaction as a fee.  The speed is a different story, in order, to get a confirmation (in the next block) you need to wait for 10 minutes (if you have your transaction included in the very next block). To have the necessary 6 confirmation, it takes roughly an hour.  The Ligthning network will help to move the transactions in some seconds or less (no need to wait for confirmation), so for me it would be fine with the current fees, but it will cut the fees too, so win-win in connection with speed and fees. Merchants will be able to collect the payment in a few seconds if they connect to an LN hub with enough connections to other hubs. My only concern is that merchants are legal entities, so they need to prove the incomes of their shops, and if they accept bitcoin but they cannot include it in their tax report, because governments don't allow payments in bitcoin, it will be harder to get to the mass adoption. But if governments want to collect taxes on bitcoin payments and on bitcoin incomes (and not a small income but rather huge) they have to enable bitcoin payments sooner or later...

Still bitcoin is not yet for the day to day usages due to its high fees and more time to get confirmations.But soon bitcoin will be uses everywhere after the lightning network maybe.But many online websites are accepting bitcoin as their payment maybe it is not available in all countries but online shops like amazon accepting bitcoin and many institutions accepting bitcoin as their payment.
I don't want to spend any of my bitcoins now because it be more worthable in future so you also think in that same way.

It is hard to use it in daily life even some accept it because of transaction fees, speed. Even the fastest, cheapest coins are mostly bought and sold for investment and trading.

It is way more complex than that. When transaction time and transaction fee are increasing day by day I'm afraid it is effecting bitcoin's future in negative way. The reason for last fall is not this of course but it is one of the factor.

if you buy a bitcoin better you use to buy a good altcoin for you long-term intersection or you can make to trade, and it's more useful and very productive.

The easy answer to your question is if you can get yourself a Crypto Debit card then you can spend it on practically anything. I recently got mine it is MasterCard branded and I can use it for simple things like a coffee, fill up the car with gas, grocery shopping or bigger purchases like a holiday, house furniture.