no instructors rating, then NO trial lessons!
In Germany it is legal to give pleasure flights in aircraft with 4 seats or less and even be paid for it, which is a big financial help for clubs. "Officially" the clubs are not allowed to advertise it or make a profit from it. If they do, then it's considered commercial and you need an AOC.
Some AOC holders have taken clubs to court because they felt the clubs were too much "competition", i.e. stealing potential customers from them.
Especially balloonists misuse the above mentioned legal use for flights in balloons officially certified for not more then 4 persons. But, as with club pleasure flights, it's all very hard to prove.
I was once an instructor at a school with an AOC. At the time I didn't have a CPL, so I could conduct training flights but NOT pleasure flights! I did find that a bit odd, but that's the way it was. But, as already mentioned, the other way around CPL with no instructor for training flights, is a BIG no-no!
And I have also heard that EASA will kill the possibility for clubs to continue doing the above mentioned pleasure flights.