An electrician is a highly skilled tradesman who must ensure that he is working in a safe manner. The consequences of not doing so can be horrendous, which is why it is well worth ensuring that you qualify in line with the governing body of electricians and register with them to prove to potential clients that you are competent and safe to work in their homes.
There are also electricians who work in gangs, moving from new housing building site to new housing site, installing the electrics as the houses are being built. This is interesting as you get to be involved in every aspect of the electrical process, and learn how to place the wiring into the cavities of an empty house.
If you can get an apprenticeship you will be working with a qualified electrician, and may well find you learn quicker, as you will watch him at work and have the chance to build your skills at your own pace. Whereas working in a classroom environment means you have to work at the pace of the class. You will get to see a wide variety of jobs as they happen, rather than staged examples in a classroom.
Some companies will send you to college one day a week, which further boosts your learning. This is known as a day release scheme. Generally there are no minimum education requirements, although getting the best grades you can in Maths and English will always help your chances when competing for places or apprenticeships.