On top of that, you’ve also got dramatic differences between different games. If you get good enough and play for money, then it eventually becomes playing esports, but the transition is very vague and blurry. If you turn on a game and play a couple rounds, you aren’t really playing an esport, you’re just playing a game. It’s not like tennis, where going down to the neighborhood court and playing a couple matches with a friend is considered playing the sport (even if it’s just at a casual level).
One of the big hangups for most newcomers is that esports is pretty poorly defined. The infrastructure can be as little as people playing in their own homes on their own cheap computers or as much as entire buildings owned by international organizations, dedicated to training players with a strict dietary and exercise regimen. These rewards can be practically nothing or tens of millions of dollars. Esports is a field of competitions in video games that offer prestige, money, and sponsorships, just like you might find with any established sport like tennis.