My grandfather did this for 20 years in the lottery, and he didn't win a good thing while paying up $0.5 every day.
It depends on the person who is doing it, and they have pet numbers for a reason. They don't want to give it up because what if it suddenly comes out the moment they missed betting for that number, or they just placed a bet with different numbers?
It's mental. They cannot switch because they have the mentality of "what if". They don't want to miss that moment, and so they will not give it up. They would rather place another set of numbers in a new paid bet than give up their pet number. It means more expenses.
Of course, this is quite possible, because no one gives any guarantee of winning in the lottery or gambling, you can play your whole life, but never see a big win. Perhaps the older generation is ready to bet on one number for a long time, but modern players are not, they want to try new emotions, various new gambling games, sports betting, casinos, a million different slots with awesome animations and sounds. In any case, no one wants to lose, and no one knows whether such a person will be lucky in the future, even if he bets on one number or several. The point is that if you don’t bet, you will definitely never win, ahaha.