People say we have to put in some effort to study a certain game before placing a bet. By study, they mean using different resources, checking the news, trends, rumors, and so on, because those are all important factors when capping games.
If we do all of that, it really means we're not being lazy.
But does doing all that really increase our chances of winning, or more specifically, make us profitable?
If we are referring to sports betting, in particular on football, then yes, the chances of a lazy bettor seem to be lower than those of a non-lazy one. On the other hand, a lazy person can simply copy the bids that are popular. This is an analogy to copy trading.
In general, even a thorough study of everything and everything does not guarantee profitability. The only guarantee of profitability is the possession of insider information. This is available to an extremely limited number of people, where we, ordinary gamblers, for the most part, do not enter.