Not quite - Goodwill's mission is to eliminate barriers to employment for people with various barriers. They provide training in the shops themselves, a reference, interview preparation, mentoring, and access to job listings for people who have barriers to employment, including long term unemployed, people with some form of disability, SN or LD, felons, and others. They promote within the organisation, provide managerial training, and more support than employees in a normal retail environment might find. The computer room is part of each shop. Anyone can come and register and use it.
There is far more, however. Services include many similar to what is provided by CAB offices in the UK, and more - financial counseling and coaching, foreclosure advice, support in approaching banks or credit unions and starting a savings or current account.
Also - financial literacy education, tax preparation, help managing personal finances, support in dealing with loan sharks/payday loans, screening for eligibility for welfare, financial aid for education, transportation access. , emergency housing referrals and clothing assistance, back to school clothing assistance.
Then there are training programmes apart from the hands-on retail experience - child care, ESL, literacy, courses leading to high school diplomas for dropouts, after-school programmes for children, entrepreneurship classes, support for those trying to get a business idea off the ground including approaching financial institutions, Microsoft Office suite training, everyday life skills coaching.
There are also outreach programmes for at risk youth .
Goodwill acts as a clearinghouse for some programmes, and partners with many community institutions and LA bodies. They are basically a social service agency that provides practical assistance.
Providing a table and chairs at the front of the shop is just a courtesy, though homeless people can of course use the computers if they are looking for a job. Shoppers can sit there too. In my local Goodwill there are usually some donated colouring books and crayons out on the table for children to keep busy at.