The fact is you actually do not need a lengthy analysis to be able to tell that the adoption rate for crypto generally is increasing rapidly plus generations to come will hardly forfeit it especially owing to the fact that we are in a digital era and trend. The question you should asking specifically for bitcoin is the concentration on its distinct versatility.
When you also look at the fact that people between the ages of 25-44 like and use Bitcoin the most. It shows that Bitcoin is most used by younger people. Younger generations are more likely to use Bitcoin than older generations. This will continue because the older generation is used to a particular pattern, and also because younger people are more adventurous.
But what happens if Bitcoin becomes way more successful than it already is?
What happens when millions or billions of people actually depend on it for their day in and day out activities?
Who or what then would control the infrastructure of such a massive market?
What happens to Bitcoin's decentralisation when big institutions become major holders?
Can Bitcoin remain the same when it becomes a global financial system?
The only thing that I think will change is that the block size might be increased. Since there will be more people making use of Bitcoin per day, the block size will be increased so that Bitcoin can process more transactions per second to accommodate the large number of people who use it.
Big institutions are already major holders right now, yet nothing has happened. And don't forget that there was a time Bitcoin was not this successful, and when it became this successful, nothing happened. You guys worry about problems that are not there.