You will always hear alot of doom and gloom in this business, but taken at face value, an apprenticeship IS a good idea, if you are interested in aircraft. Most companies will train you and send you to college to get a qualification, the length of training is usually about 3-4 years. . If you have your sights set on flying aircraft, it can be very invaluable to have an engineering background or knowledge. No matter how complex a/c get these days they will still need people to change wheels and bog pumps!(Just Kidding)
Apprenticeships are great fun as well, its all about learning about life as well- especially if you've just left school.Its like everything in life if you dont want to carry on with it then make a change if you can. remember there are people working in alot worse conditions and jobs they would rather not do.
Cheers