Why buy Bitcoin instead of IBIT ETF?

I’m looking to start DCAing weekly to build a long term BTC position as a hedge and trying to rationalize why I should buy only the IBIT ETF in my Schwab account instead of actual Bitcoin that I would have to self custody.

I don’t care about not being able to trade outside of market hours because it’s a long term hedge position against inflation that I won’t actively trade.

I don’t have particular worries about the government coming for me and freezing my assets (where self-custody would be valuable).

So what are the other major advantages of self custody vs just buy and hold of the ETF?