In Australia, you play club rugby and eventually if you are good enough you get selected by a proper team. No college needed.

In England, the possibility of becoming a professional rugby player depends on what code you are playing. In rugby league, at the end of each junior season, trials are run for the area's top Super League club/s. The players picked for this are taken from the best players from each of the mini/junior age groups of surrounding clubs. You have to undertake a number of trials that test your skills to possibly make it thorugh. In Rugby Union, it is slightly different. Xcouts are rarely at junior matches, but if you get selected to play for your county, you may get noticed by a Rugby Union club and be taken under their wing For the record, I hate my county's coach

If you play on the USA national team you could easily get a try out on a professional club in Europe (France, England, Scotland, Whales, Italy, and Ireland.), the Southern Hemisphere (South Africa, Australia, and New Zealand.), or Japan. The other way is if you're an American is to go play for a lower level club in Europe, Southern Hemisphere, or Japan excel and move up the ranks and divisions. Or go to a rugby school in Europe, Australia, or New Zealand. But both these process would take at least 2 to 3 years. How do you make the USA national team is simple process while you’re playing overseas tell USA Rugby that you play for a respected club and tell them which one. Then they will invite you to a try out with the USA National team. Another way to make the USA National team is to play in the U.S. Super League that is made up of the best D 1 clubs in the USA, excel then be asked to come to a USA Rugby training camp. If you don’t live anywhere near a super league team play for your local club every major U.S. city has one. Then go try out for your regional team examples are the all South Team, and all Pacific Coast team. Then go to the annual USA Rugby Tournament of regional teams there will be USA Rugby Scouts at the tournament. Don't worry about the availability of a spot on the USA team, because there is plenty of room on the U.S. roster that constantly changes of 50 or more rugby players. Remember that Rugby in the USA is an amateur sport if you are athletic, committed, and know your rugby fundamentals well you can pursue any of the above options.

in England if you are good enough at a youn age you can be put forward to a county trial then if you progress through that you play for a area of england for example soouth west or a different point of the country. after that you will eventually if good enough get spotted by an england rugby scout and be asked to turn up for a trial where you can either get rejcted or accepted if you are good enough and then just work through the age groups until senior adult rugby if you are potentially good enough.