PVP gaming is really a thing but only for those who are skilled enough in that particular and specific game.
Not all do have those skills that's why others preferred just playing the usual casino games and find their luck. PVP type of gaming is also for experienced ones that a pre-knowledge about the game is really necessary before anyone wants to compete with others with stake money.
There are also games that might be prone to some cheats or any sort of game bot e.g chess, checkers, pool, billiards etc. and we don't know if we are against a real human or a bot.
PvP type of game is very competitive and it can be very annoying losing consistently because your opponent is a guru in the making and that alone can make you feel bad making adjustments. There are so persons thatmight find it very interesting because they are playing with a real human not against computer that could limit the chances of players winning at random.
I would prefer the pvp if I am playing with little fund because I wouldn't want to make the mistake of taking the risk of losing money easily without knowing how good and experienced the person I am playing with good be.
So basically wager small, till you figure out how good you are in comparison to the rest of the people you matched against?