Bitcoin is the best crypto asset to invest because it has a limited supply with a higher demand. It is extremely volatile asset that can give you huge profit if you invest it properly or holding it for a long term. Bitcoin has gold-like properties and the most trusted cryptocurrency. Billionaires, millionaires and many big companies are already investing in crypto and you can clearly saw the development in bitcoin after ten years of existence. There's a lot of reasons why it is good to invest in bitcoin but all is depends on your knowledge about it, on your capital and how you are going to invest. Remember that investing is risky and it needs knowledge so that you can hold when market is not good and not be a weak hands that easily panic selling during the downtrend.

For most developed countries, there's usually laws preventing a bank actually stealing your money. For example, in the UK, and the USA you are covered up to a certain amount of money if anything happens to the bank. For example, if they went bankrupted you are covered up to 85k in the UK I believe. So, your point about banks stealing money only applies if you have money above this threshold stored in one bank. However, you can mitigate this by having multiple banks which are legally registered, and covered which would allow you to effectively increase this threshold.

The biggest draws to Bitcoin are likely its decentralized nature, and the fact that there is a logical, and definite way of circulating the currency. There is no printing off more Bitcoin or introducing new Bitcoins into circulation, there is no massive injection of Bitcoin at one time. The math has pretty much been already done, and Bitcoin will continue down the path of releasing more Bitcoin into circulation at a steady pace.

Regarding decentralization; that's got to be the biggest draw. At the moment, the government, and various companies that handle your money in traditional fiat currencies means that you have to rely on several third parties to actually make a payment. While, the government has complete control on your money, and have heavy regulation. Bitcoin, which is now taxed by the majority of companies also has regulation, but is far less than that of a fiat currency in terms of the restrictions imposed on fiat currencies. For example, fiat currencies usually have a fee for transfers outside the origin country, and various other handling fees. You actually determine your fee in Bitcoin, it might mean that the transaction might take longer than average, and is definitely slower than fiat currencies currently, but it has a dynamic fee which you determine by increasing or decreasing the incentive for miners.

However, the reason you might invest in Bitcoin might be different from mine. For example, curently due to the nature of the Bitcoin market, there are plenty of investors investing into Bitcoin simply because its profitable, and is probably the most profitable nature due to the frequent swings in the market. Simply put; its a very volatile economy, which actually creates  some very profitable margins.

This one depends.
If you happen to hold your Bitcoins obviously in a custodial wallet, then you're not just risking your Bitcoin to be locked up from your account but you are risking your Bitcoin as well from hacks.
There are some number of newbies that think that if they enabled 2fa on those, they're secured already for life but they're not.

---

You know what they say, "Not your private keys, not your bitcoin"

Bitcoin is digital gold, with storage value and room for appreciation. A long time later, Bitcoin is a historical relic, becoming more and more valuable, rare but invaluable. Bitcoin is a digital currency with a variety of scientific quintessence and has interdisciplinary genes.

Bitcoin itself has value, not only exchange value, but also the function of rapid self-appreciation. Bitcoin's exchangeable equivalents not only have exchange value, but can be exchanged with any item in the market at an equivalent value. Even due to self-scarcity and the high cost of self-production, it itself has the function of rapid self-appreciation.

Bitcoin mining will become more and more difficult, competition will become fiercer, and the cost will become higher and higher. Therefore, the cost of manufacturing Bitcoin will double year by year.

I think the reason why you should invest in bitcoin is because it can offer really high returns, just look at the charts these past decade, bitcoin went from a measly 1 dollar to a 40k dollars in just a matter of a decade easy.

Bitcoin is versatile wherein it can be both a currency and an asset at the same time depending on how you will use it. Most people are more likely investing into Bitcoin because of its value and undoubtedly they are wanting to obtain or acquire a single Bitcoin or even a big part of it for own personal use of course. We do have different reasons why we tend to invest into Bitcoin and the most important thing is that we make use of it effectively to boost its full potential as a currency and as an asset depending on the usage you want it to be.

Bitcoin's historical growth inertia will continue and will not plummet. Looking at several major historical points in Bitcoin against the U.S. dollar, it is not difficult to see that the appreciation of Bitcoin is accelerating. From the perspective of a digital currency's disk technology, Bitcoin has always been on an ascending channel of long-term heavy volume growth. This is a wheel with historical growth inertia, and every institution and individual cannot stop it.