On the other hand, many young people are excited by the possibilities of a portfolio career. "I just couldn't do the same thing for 40 or 50 years, " said Tina Hill. "I'd get so bored. I want to be able to change careers or even take time out to go traveling. There are all sorts of opportunities in the voluntary sector. I'm applying for a work placement foran overseas charity so that I can see something of the world. People complain about