That depends on what your goal is. If you are just looking for a PPL to fly with friends or family, any kind of high school/community college will probably suffice.
To become a commercial pilot, you should have at least finished high school, preferably with English, Math and Physics. On top of that you take a grading to see if you could complete the flight education without problems.
Rotor & Wings has a modular education system. The advantage of this system is that we can adjust the start time and progression of the training to your situation. You can start whenever is convenient for you.
If you go for SE-IR first and plan to take a conversion course to ME-IR after, it will be more expensive than taking the ME-IR course right away.
In the first case you need 2 typeratings, the 5 hour TR for Single Engine and the 8 hour course for Multi Engine. Plus the exam for both type ratings. That's already 6 hours extra and than you need to do the 5 hour conversion course for ME-IR, so in total it's 11 extra hours.