Given a travel related situation, and given a specific question about the situation, summarize the question into a title

Q: I recently went to Japan (specifically Osaka and a few other places around Kansai) for the first time in my life, and had an amazing time. One of the many cultural differences I noticed was that Japanese ATMs were rather different to those in other parts of Asia, North America, or in Europe.

In particular, every one I encountered presented money towards the user displayed "in full", usually up from the ground, as if it were a pile of cash resting on a table. Every other ATM I've ever used shoves out a (probably) thin wadge of notes, with the edge of the wadge presented towards the user, and the face of the notes hidden until the user removes them.

Why? Given the extra engineering effort in making machines like this, and the vast amount of cultural background to money in Japan, I'd be surprised if it's sheer chance.

Here's an attempt at illustrating what I'm on about:

Japanese ATM -- Yen come out of a grey slot, presented face-up towards the user, not held on any side:

[e.g.] US ATM -- Money comes out in a thin wadge held by rollers:

A: Why do Japanese ATMs dispense money stacked differently to those in the west?
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Q: As an example I've recently been to Paris and the level of credit card adoption there is so high I didn't once need to take out cash. I likewise assume many of the locals avoid cash altogether and only pay by card.

But what's the etiquette in places where tips are common, like bars and restaurants? Are you supposed to keep cash just for the tips? Or is it up to the waiter/barman to offer you a tip option on the card terminal? I've tried asking the wait staff if I can leave a tip by card but they either misunderstood me or their POS terminal didn't have such a feature.

A: Are cash tips still expected in cities where nearly everything is cashless?
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Q: My friend and I arrive to the HK airport (by international flights) with a 40-minute difference. Where is the best place for us to meet? I've heard that all flights arrive to terminal 1. Is it a good idea to meet at some specific place in Terminal 1, before going through the immigration and customs? If so, where exactly? (The map says there are 8 levels, and I'm not sure which level and place is most optimal.)

A:
Where to meet a travel partner at the Hong Kong airport?
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