If you have a CFI, preferably with a CFII and MEI, you will get more work than you can handle. I work for a major flight school in the US, after 8 months of work my salary is 35K US PA plus the usual benefits package, and on average I fly 110 hours a month (about 85 SE/25 ME). If you are raising a family this isnt the greatest money, but hell, I'm 20 years old and it more than pays the bills. However, some schools pay 10 bucks an hour. It really depends on where you go, I suggest paying the extra bit to do your training at an academy that allows instructor graduates to stay on, the pay and conditions are usually better.