According to her a joint savings or checking account will accomplish the same thing. When one of the people on a joint account dies, all money in the account belongs entirely to the other person, regardless of what the deceased's will may say.
I believe it was the same for real estate as well, though I'm sure that's the kind of thing that can vary by state.
I think that's a valid point however, (and this is not legal nor tax advice to anyone reading

)
If Rox owns a house. Let's say she paid $50,000 for it and today with all her olives, it's worth $1,000,000. If she put me as her child, on as joint owner then she has also given me one half of her cost basis.
Meaning, if she passed the next day (probably from eating too many olives

) then I'd own the $1,000,000 house BUT I'd have a cost basis of about $525,000 in it. I'd have her original cost basis divided by two plus the step up amount at her demise.
I'd suggest that I'd RATHER inherit the house with a $1,000,000 cost basis and get the entire step up in value tax free.
So, in bank accounts (savings, checking) Joint might be fine. The 'downside' of making it joint is if the son/daughter is a ner-do well, then they'd have full access to the money. also, if they got divorced or in a car wreck, their half of the account would be their asset and could potentially, have a claim slapped onto it. Keeping it NON joint, but POD keeps that risk out of the equation and still gives them immediate access at the passing of the owner.
In real estate or brokerage accounts (non-IRA type) then I'd suggest you might want to stay away from joint since it
might make more sense to pass on the stepped up cost basis rather than to share it.