Is partners drinking ok?

I am a non drinker so I have no idea what people drink weekly and it be ok. But just a quick question in regards to my partners drinking...

Is drinking every other day 3/4 pints ok?

And obviously drinking Friday Saturday and Sunday 4 ish pints each day?

I’d say around 18 pints a week my partner consumes. Is this ok?

If it’s a weekend and he doesn’t have work he could start at around 12 just casually having a drink whilst sat at home..

But in work days he will have none one day then like 3 the next followed by half a bottle of wine.

I have mentioned it before but I’ve obviously been told not to worry and I’m wrong so I don’t wanna mention it again really.