An incredible amount of resources (Money). To establish a team in the MLS in North America, you need a base of 40 million $. From there you will also need a stadium, players, trainers, Coaches, Managers, Business Managers and the list goes on...The amount (from a complete guess) would probably exceed 80 Million...
A lot........................ seriously don't do it unless your well off.
Depends on where you play for this one. Professional soccer is pretty much the same for everywhere, but regular soccer differs around the world.
Too much
about 20
about 20
around $70
Nothing if they cannot spell.
twenty three pound a day
200k per game
Soccer, you live longer. On the other hand, if you are really good at football, a professional career is always a possibility, and a much better chance at being a professional football player than a professional soccer player.
Professional soccer players in Costa Rica do not make as much money as other professional sports players in the US. On average they make around $1,000 a month.
it depends on which league they play in