Bitcoin is likely pretty close to inevitably going to continue to be volatile in the next 30 years, but surely if bitcoin's market cap continues to increase it will likely become less volatile with the passage of time.. but as you seem to hint 30 years is a long way to project out, so it does not have very much to do with the topic of this thread except maybe to the extent that your buying BTC (and even loading up on BTC) right now will give you a lot more options 20-30-40 years into the future, so maybe even slow accumulation now and in the next 4-10 years will then result in such BTC accumulating person to have a lot more options when it comes to 30 years down the road.. so long as s/he had not ended up losing the BTC along the way.. so one thing is accumulating BTC but another thing is actually making sure taht they are secure and periodically checking security and keeping up with the better ways to hold your BTC... whether that is going to change or not in the next 30 years seems to also be something that is hard to predict but seems likely since we are ONLY 14 years into bitcoin, as you mentioned.
Indeed, Bitcoin is relatively young, being only around 15 years old, and remains early in stage of its development, landscape of Bitcoin could undergo significant transformation in the next 30 years. Its volatility will also decrease overtime with the increase in its market cap as I also mentioned in my previous post.
The pressing question is how an individual with an average income can afford to acquire a meaningful amount of Bitcoin, especially when its price potentially reaches $250,000 within the next five to seven years. Hence, current lower prices present valuable opportunity to accumulate Bitcoin before it becomes less attainable.
You do not have to buy a whole bitcoin. You can buy 1 satoshi... so bitcoin is not necessarily going to become too expensive to buy, even though people who got in earlier are going to have advantages in terms of how much their BTC cost as compared with people who are buying later.. so that is merely one of the advantages of acting earlier rather than waiting around and seeing what happens.
Holders have been using this method for a long time, whether they are day traders or long-term traders. And we have also seen that it is effective, and this is also where traders usually make money. Especially if we know how to feel the right timing of buying and selling.
Especially in times like this with bitcoin halving approaching next year and surely many hope that Bitcoin will really reach the price that most people expect it to be or that it will reach the price value of Bitcoin, which is at least 100k$ in the market, I just hope that the majority will not be disappointed, because until now, it still remains speculation.
We are not talking about trading in this thread, and the overwhelming majority (maybe even more than 80% of people) do not even need to try to trade bitcoin. They are likely going to be much better off to employ various strategies that mostly focus on ways to buy BTC, even if they employ a variety of means of buying BTC that involves DCA, buying on dip, lump sum buying and even HODLing from time to time when they run out of money to buy.
Anyone who is knew to bitcoin or even several years into bitcoin and who are largely accumulating bitcoin should not be considering selling bitcoin as a means to either accumulate bitcoin or to be using selling as a means to attempt to buy more bitcoin. It is not a good accumulation strategy for more than 80% of people.