Increased Bitcoin adoption could certainly trigger a general increase in Bitcoin's price because it could also create significant changes in the supply and demand side of the market. Therefore, the $1 million price for a single Bitcoin unit isn't really about whether it's impossible or not, but rather about how long it will take to reach it. While it's certainly not immediately attainable, even though Bitcoin recently returned to $122,000, reaching $1 million will still take more time.
Actually, Bitcoin is not like that, a quick rich scheme, it has the pattern of its own, and its goes on that way by following that pattern. And that's why I would say that it's normal that Bitcoin won't cross one million dollars overnight. But of course in the long-term it's not just one million, I personally hope that each Bitcoin will go up to 10 million in the future.
And this is a completely logical thing, because it is an open secret to everyone that Bitcoin has a limited supply of only 21 million for the entire world, and the world's population will increase as the day goes on, and for this reason, the price of Bitcoin will also increase as it goes on. It will not be stuck at a specific amount.