The simple way to convince them to want to learn to play better is point out to them what every hit they've taken should have told them in about 1/20th of a second: playing paintball is fun, but winning in paintball is a lot better because GETTING HIT SUCKS. They don't want to get hit? Well, simply convey the point to their little brains that if they honestly and truly don't want to get hit, then they should be more than eager to listen to, watch, and do anything that keeps them from getting hit. SIMPLE ISN'T IT?!?!?
1. Paint is the number one money priority in expenditure, BUT ONLY IF YOU HAVE A GOOD BARREL TO SHOOT IT THROUGH FIRST.
A good barrel is not necessarily a $30 barrel, nor is it necessarily a $250 barrel. A good barrel shoots paint accurately enough to have the paintgun put paint close enough to where you tell it to so that you can hit the other guy before he gets you, and consistently enough that unless he really plays the game better than you, he will not get you first. Period. Use only such barrels.
DON'T LET SOME MORON OR SALESMAN TRY TO TELL YOU OTHERWISE!!!!!!!!!! ANYTHING BEYOND THAT IS TOTAL RUBBISH!
2. If you do something that gets you shot, don't do it again. In fact, pay exact attention to what other people are doing that doesn't get them shot AND helps them shoot the other people. Focuses on what they're wearing, how long their hair is, and how much beer they drink afterwards may be interesting at the time, but they do absolutely nothing whatsoever to help your game. None. In fact, they take your attention away from what you should be paying attention to. IGNORE THEM. FOCUS ON THE GAME AND WHAT SUCCESSFUL PEOPLE DO TO WIN IT.
3. If what you have in your hand doesn't work for you, don't use it. There are people everywhere that use the cheapest possible and conversely the most expensive possible equipment, the obvious expectation that the cheapest will be the worst and the most expensive always be the best. THIS IS AS FAR FROM THE TRUTH AS A LIE CAN POSSIBLY GET. Yes, you can get more reliable equipment for a heftier price that chances are will work better than the next lowest priced option. Do not count on that, however. NEVER count on that. Neither price nor popularity guarantees that your specific piece of equipment will work as well as it is priced or reputed to work. Yeah, it will give you a VERY CLOSE idea, i.e. unless you get one out of a trillion then it will be everything it's said to be, but never assume entirely that there is no chance that you might want something else or conversely want it when others say you really don't. I shall give you some examples here.
My experience with paintguns proves this to me, if to no one else. Everyone I knew at my field with perhaps two or three exceptions out of 40 or 50 people had at some point or another owned a Mag, and swore them to be the most functional, reliable, simple guns ever made and that if I had one I would be happy with it for years. It was the expert's gun at my field, and had been reputed as such for years. I do not doubt this to be very consistent with the truth in the vast majority of cases. However, upon getting my Mag, new from the factory, I so happened to have problems with it. A lot of very minor, but very functionally impairing and very annoying problems. I was ticked off beyond belief. Worse, this was when the wave of bargain priced electros hit my area, notably the BM2K, and made Mags in my area nearly worthless. Why, after all, get a slow(er) firing mechanical marker that you had to set up that cost as much or more than a marker that shot at lower pressure, weighed less, had fewer idiosyncrasies arising mostly from orings and seals, couldn't be short stroked, and could bring a moderately experienced player up to a level where he could compete with experts in just a few weeks of play? My gun had become a dinosaur nearly the day it got to me, and I lost a little over $300 in depreciation in less than 6 months. --- Conversely my next gun, a 99 Shocker powerfeed, a gun that many regard, not without some elements of truth, to be too heavy, too maintainence intense, too gas inefficient, and too low priced to be competitive with any serious tournament gun or any player equipped with one. This, whether just personal experience with me or not, just simply was not and is not true. Since the day I first tried a friend's of mine, I could hit anything with a Shocker and never, not ever, had any problems large or small with it, except for one that was my fault and was easily fixed with no ill effects afterwards. It never chopped or broke balls, ever shot hot, or ever put paint anywhere unless I told it to and did so swiftly and--for some reason that paintball tech heads everywhere can't explain but know to be true of Shockers-- farther than any gun out there on the field.
In short, pick up any gun or component, THE VERY GUN OR COMPONENT, NOT ONE EXACTLY LIKE IT, THE VERY ONE OF THAT VERY SERIAL NUMBER BEING TALKED ABOUT, and shoot it for yourself before believing ANYTHING said about it. Then watch it being played on the field and see if it holds up to what is said about it. If it doesn't work before your own very eyes, don't trust it to work. Period. EVER.