I've been on a 3 year career break from a management job and am now actively looking to return to work, doing what I did before as I'm really quite bored of not working now. I did a bit of voluntary work to keep my mind active/ feel like I was contributing something to society, but it was hard to achieve much with it as I've been with 2 kids aged under 5 / pregnant etc in the space of 3 years off work. So i could only spare a few hours a month.
What I've found is that being off work can be quite lonely and a bit soul destroying after a while. It's great to begin with. Feels like a long holiday. You have a lot of freedom and sunny Summer days at home with the kids are lovely. Then the reality of not being useful in society kicks in after about 6 months or so.
You hear friends / family talk about their successes at work, (promotion, going on a course, getting a bonus for a good piece of work etc), then start to feel low because you're not being recognised for the childcare you do for your own kids.
I honestly think it makes you feel a bit lost in the world when you don't work. Hobbies and socialising haven't made me feel like I belong anywhere. I have missed having a job title and an income stream/ cash being paid to me each month for a job well done. £80 child benefit for caring for 2 kids doesn't cut it really!
Society revolves around work / money and what job you do for a living. Most people work rather than not. People don't know what to say to you when they make small talk and ask you where you work and you say you're a SAHM and not currently working. It's an awkward position to be in when most people have some kind of job, however few hours it be.
I would say that a sabattical of a year or 18 months is fantastic to experience, but a longer period of unemployment is no fun at all. I don't think giving up work is all it's cracked up to be. Not unless you know plenty of other people who are like that too.