It is SO obvious you have never worked in the industry.
Most bartenders serve drinks at the bar where they are tipped directly
by their bar customers for that service. When they also have to prepare
drinks for a server to deliver, it takes them away from the customers at
the bar (who tip the bartender directly). In order to ensure that the
bartender give the server's orders as much time and attention as is
given to the customers at the bar, the servers tip-out to the bartender,
so that all orders are equally "rewarding" to the bartender, and the
bartender works all orders as received.
These systems were worked out directly between the servers and the
bartenders early on. Servers would "tip out" to the bartender to ensure
that their orders were prepared promptly, the servers who tipped better
got better service from their bartender, just like the regular patrons
at the bar who tipped better got better service from the bartender. Now
it's just an established practice.
The practice of tipping out to hosts and maitre d's is basically
bribery, pure and simple. There is no logical reason those positions
should share in a portion of the server's tips, and when I worked as a
hostess/waitress in the late 70s/early 80s this was not a common
practice (at Bennigan's - no one ever tipped-out to the host/hostess, or
to the busboy), the host position was a minimum wage entry position and
you worked there only until you could move into a server position. To
the best of my knowledge, the practice arose (as a common practice
across the industry) in the mid-to-late 80s as servers would sometimes
slip a bit of a tip-out to the host when they were given a party that
was exceptionally generous, to bribe the host to give the "best
customers" to that server over the course of the evening. Then, over
time they all tipped-out to the hosts because if you didn't you were
selectively given the worst customers, or somehow "skipped" in the
seating order and ended up with fewer tables each night. Ditto for
tipping to the busboy to get your tables cleaned up
sooner/faster/better, and especially as busboy positions also took on
other table service duties (water service, coffee service). Now it is
just expected that servers tip-out to the hosts and busboys at the
better restaurants. (Not at Denny's, but at places like Ruth's Chris.)
Anyone who has worked in the industry recently knows how much the
servers have to tip-out to co-workers today, and thus is often very
generous in the tip they pay (e.g. 25% or more). [1] They tell their
friends and family why they tip so generously. This is why, in part,
tips have risen over the past 50 years from a standard 10% (when servers
kept all that they received) to a standard 10-15% (went up in the 70s
with inflation when minimum wages were not going up, but restaurant meal
prices were going up, so that servers could afford to live on what they
received) to a standard 15% (80s and 90s) to today's standard 15-20% and
moving towards 25% - the tip you leave is being tipped-out and shared by
a lot more workers today than in the 1960s.
jc
[1] Here's an example where a server has to tip-out 35% of what they
receive to other employees:
http://www.tumblr.com/tagged/tipping?before=1314726301
> But each restaurant sets its own “tip out” procedure. The place I
> work now requires that the servers tip out 20% to the busboy (unless
> there is a host working — then 7% goes to the host and 13% to the
> busboy — the busboy is never happy when there is a host and doesn’t
> work as hard since he isn’t making as much even though a host is on
> because it is busier and everyone needs to work harder), 10% to the
> bartender, and 5% to the “kitchen.” (Which in California is against
> the law.) We have no food runners or sommelier so we get to keep that
> “savings.”