Liberon but if you are in isolation, but nobody has Covid-19, you can still go outside, play with kids outside etc.
You need to avoid close contact, keep your circle of contact small, no public spaces where possible.
You don't need to stay in the house 24/7 with no access to outside at all.
If there was a case of Covid-19 in the house, yes then its isolation in the house - but for 14 days, so never months.
It's tough, not impossible. I wish the UK could its around that concept (UK here meaning the Government)