Its a good idea, might even make a fine commercial venture. My only
problem
with 160 to 190 khz is that its a public band, not an amateur band.

My reason for operating 80M under part 15 is that as a code practice
group
they can get used to courtesy and usage as well as operation, and
anyone
who happens to listen will simply hear just another group of brass
pounders.

Immediately after getting the license they can keep the same rigs but
then
start an amplifier project.

Another question would be temporary callsigns. I was thinking that
each kid
would have the call 15XX, where XX is the first and last initial.

Ww wow wow wow.... put the brakes on here a second.

There is a little flaw with that logic.

People do listen around the band, and type up the callsigns on
websites/books/CD ROMs, and a lot of logging programs have callsign lookup,
or at least rough location determination based on call layout.

There is never "just another group of brass pounders"

There is plenty of people that operate at levels of a watt or less, with the
full knowledge that when they pound out a CQ a couple times, that someone,
or sometime a bunch of people, will be looking through the band, hear them,
and respond, so they can make a contact.

Local CW ops, and even some at quite a distance will quickly determine that
there has been a flood of "very strange, illegal, but slightly weak people
that don't do code very well" cluttering up a specific frequency, or cluster
of frequencies.

Of course, the operator/s will subsequently have kittens, and all attempts
to make ham radio operators look like a bunch of angles will go down the
drain.

Of course the operator/s will try to get the group of "freebanders" to
leave. If they don't listen, then the operator will do his solemn duty and
he will get reinforcements, and the frequency will sound like world war 25
has just broken loose, pronto.

Them using random, made up callsigns will speed up the process, because
there is plenty of people that cruse the bands, looking for rare DX. How do
you think pileups happen? When they find a weak station using a rare
callsign, it will hit the DX clusters, and all hell will break loose.

Heck, one of the groups that I always listen to on 160 had a little fun one
time. One of them made a joke by saying that he was (something thousand
miles) south east of anchorage Alaska. (ie) In Iowa. And all of a sudden,
there were tons of people on the frequency asking where the Alaskan station
was. And carnage issued. Some casual passer by had heard the Alaska
reference and forwarded it to the DX clusters.

I can see so many ways that that setup could lead to total carnage in so
many ways.

You will have some poor child asking his parents why someone would want them
to stick such and such in up their tail end.