What if you live in a state where you can't get positive cash flow on rental properties?
I've been looking to invest in rentals for years and I'd have to go out of state which would drive up costs and risks.
I don't think it makes sense to turn people away from Bitcoin, stocks, or real estate. It is smart to be diversified. Your argument against Bitcoin are some of its greatest selling point. Young people see value in it (the bagboys) and there is so much money floating in the economy it has to go somewhere.
Congrats on doing well in real estate. Don't forget what happened in 2008. A lot of landlords, homeowners, speculators got crushed in real estate. I still think real estate is a good investment, but I disagree with writing off Bitcoin (the best performing asset class for the past decade).
Not to mention, renting real estate has huge counter-party risk. Imagine if renters stop paying rent, a natural disaster occurs, or you can't rent the property out.
And, for the record, Bitcoin does solve two of the three things that you discussed. It makes life easier because I can now own and control my wealth. It also makes me feel better because I am diversified out of fiat currency.
Bitcoin is scarce and it is valuable (think digital gold). As more people see the value, its scarcity will remain static and its price will increase (hopefully).