One of the main attractions of sports betting is that with the right knowledge about a particular sport and the odds you could at least decrease the house edge the casino has over you, but that possibly disappears as soon as you decide to make a bet on a sport you know nothing about.
And while there is nothing inherently wrong with such a decision, as each person can decide in which way they may like to use their money, at the same time anyone doing this may as well just play a different gambling game, as they are refusing to take advantage of the knowledge they have accumulated as fans over the years.
Well, there is basically no house edge in sports betting but it's your own choices that make you win or lose, the house has zero influence on the results of a sports game. It depends on how much research you can do and how you analyse both sides and choose the best one, if your guess or prediction turns out to be right, that's great, if not, the house wins.
It's definitely better to play a gambling game than betting on a team or a sport that you have no knowledge about, it's just placing a bet on a Hi-Lo game with a 2x multiplier where there are 50-50 chances of you either winning or losing the bet.