tenant13
Full time employment: Posting here.
Hmm ... I think most of our IRAs here are self-directed. Certainly DW's and mine are.
Possibly you are referring to IRAs that hold unusual assets. I used to do that with some private placement/venture capital investments and once held a real estate limited partnership share in a Schwab IRA. Unusual assets are, well, unusual so they do take some extra care.
One problem is finding trustees that will take them. Schwab used to but a decade or more ago they stopped. The promoters of deals that I was involved in usually had a cooperative trustee lined up.
In a broad sense yes, all IRAs are self directed: we make investments decisions ourselves when we buy funds, stocks and bonds. Schwab and the like are just custodians. And you're right that for investing in "unusual assets" one needs a custodian that would allow that. It's fairly easy however to become your own trustee: https://www.rocketdollar.com/learn/.../checkbook-control/what-is-checkbook-control?
I personally don't see real estate as an "unusual asset" and the ability to buy an investment property with cash makes SDIRA an interesting option. Clearly, there are benefits in doing that with taxable money but that applies to US and similar markets - where property taxes and HOA fees might be very high. On the other hand property bought and sold within IRA does not owe any taxes on capital gains.