IMO, traditional casinos can keep just like that and let online casinos take care of it, there's some different atmosphere when you play on traditional casino between online casino. I'm sure people feel nostalgic when playing on traditional casino which make it very different.
It's the one difference that can keep if he's still playing traditional gambling with casino's instead of playing online casino's.
And not only that you'll feel nostalgic, there are instances that you will have that type of feeling where it all started if you ever started to gamble into a casino.
There are many differences between online casino and traditional casino, it is easy to pay out in the traditional it is less hassle compared to online where you still need to send the coin to wallet or exchanger and exchange it to cash.