There are many half-truths about lottery numbers. Let's take a sober, statistical look at the most common ones.
The fact that a number has come up more often in the past does not mean it has a higher chance next time. Every draw is independent and every ball has the same probability in each draw. Long-term differences in frequency are a natural result of chance, not a sign that a number is 'lucky'.
This mistake is called the gambler's fallacy. The draw has no memory — it does not remember that a number 'owes' an appearance. Even a number that hasn't appeared for a long time has exactly the same chance in the next draw as any other.
No number-picking system changes the probability of winning the top prize. A system bet increases the number of combinations played (and the cost), but it does not change the randomness of the draw itself. The only thing you control is how many combinations you play — not which ones come up.
Statistics describe what happened, not what will happen. They are useful for understanding the game and as a fun aid when picking numbers, but they are not a prophecy. Treat them as an interesting fact, not a guide to a sure win.
Because they are fun and educational. They show what randomness looks like in practice, help debunk myths, and make picking numbers easier for many players. The main thing is to play sensibly and for fun.