Updated: Oct 10
Don't put your date of birth on your CV (This goes for anyone. It's just not needed and opens you up to bias).
You don't want to be listing every job as it's just not relevant and ages you. What you did in the 80's really wont sell you to an employer NOW. A good rule is to only go back 10/15 years depending on how often you moved about/how long you were in a role. IF your experience relevant to the role you're going for is a long time ago, then possibly condense more recent work that's not relevant. This isn't a hard and fast rule so do ask if you're not sure in your particular case. (The exception to this is for roles that ask for a 10 year history or full employment record but these are few and far between and tend to be around security clearance ie airport MOD roles). The aim is ideally to get your CV down to 2 pages (ish). You can go a bit longer if you have to but it's unlikely to be read if you make it too long and it's likely to have lots of irrelevant info.
You don't have to put the dates when you studied as again this would make it easy to guess your age. If you have studied since leaving school, you don't have to list school achievements at all as the ones after are most important to employers so feel free to list your degree etc but without dates (unless they are recent). If you haven't, it's perfectly fine to say 'Educated to Higher Level' and go on to talk about relevant industry qualifications or just leave it at that sentence. Education is generally less important the older you get and should be at the bottom of the CV UNLESS you are going for a role in academia.
If you had a long gap out of paid work to carry out childcare duties/care for an older person, it's absolutely enough to put 'Career Break to Raise Family' down. Putting down that you were a nurse/social worker/ chief plaster putter oner/ cook etc etc just wont be taken seriously. (Apologies, I know this was the advice a few years back but it has dated badly) Much better to put 'Career Break to Raise Family' and then list any training and voluntary work separately under the Training and Voluntary Sections respectively unless it's really relevant to the new role.
Many employers want mature, experienced staff so please don't let this put you off applying, rather use these as tools to get you to interview and then you can show them how much of an asset to their organisation you would be. I'm not for a second saying you SHOULD have to hide your maturity, these are just tips which will ensure that you are not being unfairly discriminated against BEFORE you get to interview.