^ Exactly Dougella.
Just because someone
goes to town daily (how do you know how much mental strength that takes him to do this?)
talks to people without so much of an issue (how do you know that he isn't dying inside) and 'has a girlfriend' (It is possible for folk with even severe SA to find a supportive and loving partner thanks to the Internet) doesn't mean he a lazy work-shy .... and undeserving of ESA.
There's plenty of people with mental issues who may appear fine to the outside world but behind closed doors are self harming, abusing drugs and alcohol on a daily basis and crying themselves to sleep every night. I've read of mental health sufferers who were considered to be absolutely fine because they could 'walk into town' as it were, had their ESA removed, were forced back into work then committed suicide under the pressure of it all
Holding down a job is not comparable to walking into town when you feel up to it. Employers require stable employees who are well enough to turn up to work regularly, whether on full time or part-time basis, and are able to perform the work tasks in the job description to an expected level and to be worthy of the wage that job pays.
It's all too easy for folk to judge others but unless we've walked in another persons shoes how can we know how anyone really feels?