I am not a single parent but like others I dont go out much, havent been a night out for a year or so, I much prefer sitting at home with friends and a bottle of wine/vodka much much cheaper and safer for everyone.
Why not go out once a month or so arrange a babysitter maybe a friend/family/or friends older DC who you would trust sure they would be happy to get an extra 10 or 20 quid in their pocket if you can afford to go out then surely you could save a fiver a week to give to babysitter?
In a way I am hoping you are trolling because nothing you say makes sense, do you have PND or something? No one should ever risk their childs life for a drink and yes you probably think oh it wont happen to me but the fact is Im sure no one thinks it will happen to them.
There is no legal age limit to leave your DC's unnattended and wrongly so but there is an age of resposability especiallyw hen there are other children involved.
A few weeks ago my mum went out at 11.30pm leaving my 14YO brother and his 16YO friend incharge of my 3YO little sisters who were fast asleep, I'd like to say he is very responsible and the next door neighbours also knew she was going out so they were there if needed. Doesn't make it right I know. But anyway at 12.45 she called a taxi and my brother to let him know she was coming home. Whilst waiting for a taxi (space of 10 minutes) she was grabbed and drugged then dragged away and seriously sexually assaulted, she never regained conciousness until 11am the next day in hospital, luckily my brother had our numbers and he called me at work at 2am to tell me she hadnt came home after phoning he also called the police to inform them, sorry for trawling on but you need to realise it is so easy to happen none of us ever think it will happen to us, we never did but it happened and thank god that my brother knew what he was doing and that was that she only went out for an hour and quite nearby about a 20 minute walk.
You dont just have to think about house fires, choking etc although that is the main thing but also about what could happen to you not only endangers you but could also affect your childrens safety/lives how would your children cope without their mum BTW?
Be careful for your children sakes and your own.