Some are lucky enough to be "naturals" at the practical work, but lack theory.
There are so many variables to take into account.
One important thing that drives many people is money ... thats all they want .... unfortunately, techs want the income, so they keep on keeping on.
But whats even worse is when the teachers and schools are only interested in money, they let students go way before they are ready..... just to make room for the next lot and sell the previous underqualified, innocent and somewhat gullible students product.
There are circumstances when schools do not have a choice about keeping the students whether they are fully qualified or not. If the student has completed their course we cannot keep them in school, it is not our choice, our governing body determines their "competence" by a skills test.
Not everyone can do nails, no matter how much money they spend.
Nails are an artform and just like painting (I mean accurate painting, imagine painting a picture of a nail that actually looked real) anyone can paint an "abstract", but I really don't think clients want "abstract" looking nails.
Nails should be quite precise, not an interpretation.
Tell that to the schools and teachers that are setting these new "techs" loose on the general paying public and reflecting on our industry as a whole.
While students are learning, they perform services on the general public at a reduced price (usually enough to cover the cost of product and overhead) with the client has to understand the work is being done by a student, and while they are supervised, not all students have the drive or desire to become an accurate artist.
All you have to do is look at the threads posted by newbies in here (please don't take offense guys), but really your teachers should be teaching you, YOU should be asking "THEM" the questions (apparently they are good enough to teach). Or are they too busy making money by cramming too many students in per class to give you some individual attention you have paid for and deserve?
Not all newbies want to be taught, they would rather do it how their nail person does it regaurdless of consequence because of the relationship they have with their nail professional. There are frequently times when I feel I'm banging my head against the wall while explaining that technology, technique and product availability are constantly changing. A true professional (you know you are Carl, you spend too much time perfecting not to be) spends time improving their craft, not growing idle and letting the technology pass them by.
If I was learning and had to look elsewhere for advice, i'd also be looking elsewhere for education.