I am 28 with 12 Experience-Points

... I couldn't convince my father in bitcoin. He text me the Price if it's goes up, but he don't want no for himself.
But I bought for him anyway, after I bought him a car and he gave me a little money to not have a bad feeling, that I bought him a car - march 2018 the btc was falling. So someday, I gave him a huge amount of money, and he can spend it

I also couldn't convince my brother. At least not yet!
I stopped trying to convince people. Now others are trying to convince me to show them how. Yeah, right. It was fun for them when I was trying to explain Bitcoin to them and they were laughing at my face. "Google it" is my reply now. I can't be bothered.
I only did this because it is my family. I don't care about other in this case

Yes, I can understand that. One of my family members listened to me. He is 4x of what he invested. If he had not played with shitcoins he would now be 12x. I calculated it for him, but he now insists altcoins are his way to the moon. Good luck to him.
BTW, another ATH:
$51,316.71 $51,459.29
Yep... a kind of gambler's mentality that may or may not end up working out. Seems that the odds are against such mentality playing out to make up for losses that he already made by failing to adequately be in bitcoin and what he would be able to achieve by just sticking with king daddy.
Never know? Never know? in terms of gambling actually paying off and surely if he does end up picking his shitcoins correctly, AlcoHoDL, you will probably never hear the end of it, just like you are likely NOT going to forget his ongoing dumbness for already having had underperformed because of getting involved in shitcoins nor will you forget if his portfolio underperforms bitcoin (to the extent that the gambler actually discloses the truth to you, and gamblers do tend to have loose connections with actual truth rather than the truth that they imagine to be the case).
So true. It does relate to those psychological threshold I commented on, in my earlier reply. Humans tend to act on emotion, intuition, gut feeling and assumptions that are not always based on facts. This, coupled with weak (or non-existent) understanding of the coins (including Bitcoin) that they invest in, could lead to sub-optimal performance at best, or a complete disaster at worst.
From my experience in advising others to invest in Bitcoin, the
"Bitcoin is too expensive, I cannot possibly buy one" line is the number one reason newbies tend to choose shitcoins over Bitcoin. Perhaps it's time to adopt mBTC (of even satoshi at some point in the near future) as the unit of value of Bitcoin.