~ Lol there are indeed a lot of not known teams and I don't really like to bet on a team that I don't know. Why would the underdogs win against the favorites? Yes, we will have some upsets but I would look for some value bets instead.
If it's just for fun, it will be fine because sometimes we also want to bet on something unknown out of curiosity.And if the statistics of the two teams are not too far apart and we have difficulty choosing the team,
we could choose the underdog because sometimes the underdog can turn things around and in the end, they win.
I once casually chose a team from two teams that would compete and I didn't know either of them but I wanted to place a bet at that time and by chance, I won

Apart from the fact that betting on something unknown is fun indeed, there's also another attractive thing is such betting: the much higher odds than for a bet on a likely-to-win team/athlete. I personally adore making such bets, and, in fact, they make up the majority of my bets.