Read this post and its true how small investor are losing bitcoin by investing in other coins.
You can buy 8000 tokens in 1 USD when price of bitcoin is 8000 USD but if bitcoin price will rise to 16000 USD then you can buy 16000 tokens in same price. Now all token price does not move according to BTC price,it will drop 20-30% without any sign of drop, but when you will compare with bitcoin you will find that you are in loss.
https://cryptomaa.com/btc/how-small-investors-are-losing-bitcoin-by-investing-in-altcoins/Your point is good but your theory is wrong. You are just talking about the positive side of holding bitcoin.
You never said what would happen if bitcoin goes to 4000 from 8000. Well in that case you will only be able to buy 4000 tokens instead of 8000 tokens.
Bud, bitcoin is a great store of value but we should never encourage others to buy it by speculating the price.
Instead, we should explain them about the positive aspects of bitcoin and why altcoins are not as worthy as bitcoins.