Some basic questions for a newb.

I believe that I understand the basics of Bitcoin including the block chain etc but I have a few questions that I don’t quite understand. First, I’m only interested in Bitcoin and not the other aspects of cryptocurrency.

If I understand, the idea is that Bitcoin could replace all other currencies and a quick Google shows that there is somewhere around $6 trillion of hard currency in the world. Also, I believe that there will be at most 21 million Bitcoins ever minted so if Bitcoin replaces all currency each coin should be worth at least $250,000. That all makes sense.

So if I buy some Bitcoin today am I supposed to spend it or save it until it hits $250,000 and then start spending it?

I believe that transaction fees are around $1 so If I buy a $10 item at a store the fee is still $1? That’s too high for small purchases so should I only use it for larger purchases. But for larger purchases I currently use a credit card or write a cheque.

I don’t understand how I’m supposed to use Bitcoin like cash with fees that high and then if I spend it and the value goes up to $250,000 then I’ve lost a lot of potential. Really the question is if everyone hodls and no one spends Bitcoin how is it supposed to replace other currencies?

It’s all a bit confusing.