I've been able to play amateur level competition in both the us and eu now.
The differences in Europe (least in the countries I've played in now, are vast when compared to what we all know the US to be like.
Everyone freely shares knowledge and looks to improve each other, maybe because gambling isn't as prevalent, the culture at each pool hall is more of a family that really care about each other both on and off the table, most people stop by for at least an hour or two everyday, we go to dinners together, hell few of the guys even came to the hospital with me for a recent surgery to make sure there weren't any miscommunications because of language barriers. Leagues and tournaments arent handicap at all, people go with the idea of doing better than last week, not the idea of needing a fair chance to win.
Also most places have membership rates that let you have free table time, especially out of the busiest hours. Significant less drinking during league play, also bar boxes are pretty rare so everything is on 9ft. Everything is all ball fouls, there isn't any cheating and ive never heard of or see anyone not call it on themselves, even if it's something as simple as a sweater touching a ball when leaning over the rail, no matter how critical or important the game is. Kids are also allowed into the pool halls, regardless if they serve alcohol or not, and people always take the time to teach them a bit. Lessons are moderately priced, I can go take lessons with a 8x mosconi cup player for 35 an hour. That's something that a parent can afford to buy their kid a few of or in Germany eckert will give you 2 hours of lessons and a an hour of play, for around 100 a month, try to find that in the us, how many parents can afford to pay someone 100-200 an hour for lessons.
Recently I started a 14.1 league in my new city, and we have had 30+ people sign up, spending money on table time, with no prizes beyond a piece of taom chalk for the winner of the league, division, and high run. It's just a general attitude of wanting to improve and see everyone else improve.