There are many good points and many bad ones, like with all careers I suppose, but if you start as a CM now, and go on all the relevant training, you will learn as you go along and you will probably find it easier to gte to grips with EYFS than people who have minded a long time.
I think it helps to get to know other cms, join a group or become a Network minder, go to all the baby and toddler groups, play sessions, and organise your own, events, outings etc, all of this will strengthen your bonds and support with other cms which is invaluable, and will help you love the job more. PLus it strengthens your contacts, business wise, if people in your area see you abou, get to know your face etc.
You are always on show, so if you are with your own kids, be aware than people will know you are a cm and gossip about you if they see you get mad with your own dc !
Paperwork I find manageable if I do it twice a week, planning I do every sunday for the week ahead, obs, assessments I don once a month for ea ch child, and books I fill in weekly, then monthly.
But the training is a lot - it is relentless and ongoing - but sayingt that I have gained alot from most of the courses I have gone on, and am probably a better cm beacuse of them.
In conclusion, as long as you go in with your eyes wide open, and genuinely love being with kids, then go for it. I would never want to do anything else !!