Damnit science! Why u no let us teleport!?
If we could teleport cash, we wouldn't need Monero in the first place.
And with cash restrictions on the rise, exploring other methods of acquiring crypto "off the books" may be necessary. In the meantime, I'd say focusing more on creating coinbase-like fiat exchange services will get us further.
We can think of all kinds of complicated systems, but in the end, we just need a mobile wallet which is able to show prices in eur/usd.
Remember the first bitcoin ATM in Vancouver? there was a story about the shopkeeper seeing his income from the ATM decline, and when he checked it out, he found a guy sitting in front of the ATM undercutting the fee. ( i decided at that point to never invest in any ATM company
At this point in time, people will most likely only buy from other people that are able to explain monero to them. If it is easy enough to trade some by just making the new person install a wallet and sell some OTC, then this can go viral much faster then hoping that a potential buyer checks out internet first to try to locate a seller.
People love cash, if it is easy enough to use, there are only 6 people between you and everyone else.