Great explanation from a reddit user who helped a pizza shop to accept LTC: https://www.reddit.com/r/litecoin/comments/6u4u85/pizza_beer_and_litecoin

Average transaction fees for bitcoin, over $4 right now

https://bitinfocharts.com/comparison/bitcoin-transactionfees.html

Bitcoin and Monero don't pass the 'cup of coffee' test.

Doge's inflation subsidizes low transaction fees, probably.
 

Just How Anonymous are Bitcoin Transactions?
https://cointelegraph.com/news/just-how-anonymous-are-bitcoin-transactions

Not useful to anyone reading this here probably, but a good 'bit sec 101' for new users, perhaps.

"Some of the recommended strategies are using Bitcoin services that ensure the Bitcoin users will remain anonymous during and after the transactions, utilizing a virtual private network (free or paid), and using a new address for every transaction."