Well yes, my username exposes me 😃
I think it's for a reason of "pride"? Not sure, I never owned a business there haha. But it's definitely a cultural thing, I guess business owners see it as slightly offensive...
Workers (waiters, the person who washes yr hair in a salon, etc) are usually tipped, but definitely less than here in the US in percentage
Waiters are paid decently there, they have a monthly salary and not a hourly one, but at restaurants you pay a per person small amount (coperto e servizio) which partially goes towards the tip for the waiters. Anyway you almost always leave a little tip after the bill for who served you.
Anyway it would never happen like in the US where if you don't tip you are chased by the owner of the restaurants!