It is worthy to note that Bitcoin operates on a decentralized network, This means no central authority or government controls it, Bitcoin gives full financial security and you have privacy you alone controls your money, when you invest in Bitcoin you won't have to worry about government policy, in the time of war or conflict your investment is secured.
That's the biggest upside of investing in Bitcoin, it gives full control of your money. Not many people can say they have full control of their money and can have access to it anytime that they want but when you're a Bitcoin investor, you can always say that especially when you are making use of self custodial wallet.
With great power comes great responsibility so you have to be the one to protect your money when you're invested in bitcoin and this task is some of the reason people are running away from being the custodial of their money.
They want to give the responsibilities to someone else so they have people to blame when they lose their money and not themselves. You can't be investing in a decentralized currency and still be operating like you're in the centralized world, that doesn't make any sense.