I'm opening this thread because I am curious about what the general trend is among the forum members regarding this topic: if you have to choose, do you prefer to pick some random numbers, even using a random number generator, or you prefer to select your "lucky" ones?
I'm not superstitious most of the times, and I frequently select the automatic filling option with random numbers so as not to waste time, instead of selecting them by hand. In the end, the chances are always the same no matter the numbers you choose. But I'm asking this question because there are times when I prefer to follow my inspiration and select "special" numbers, or avoid "ugly" ones.
It's funny, we all know "random number generators", but I've done a search and there are also "lucky number generators" based on numerology

So the question is: you don't care about the numbers and fill them automatically, as they all have the same chances to win, or you tend to pick your preferred ones (birthdays, favourite numbers,...) manually?
This requires some more information because it does make a difference depending on the game you are playing.
If you like to play the lottery, choosing birth dates or well known lucky numbers that others are likely to share with you, winnings in case of being lucky are statistically lower as more people with the same "lucky numbers" share the prize pool. That is why it is not the smartest method to choose numbers that others are likely to choose too, whether they are your lucky ones or not.
I think as soon as a known prize pool has to be shared with other participants, picking birth date numbers or patterns of numbers usually lowers your share in a prize pool. In all other games where your stake gets multiplied regardless of what others choose, lucky numbers are fine.