Talk through it, how does that play out exactly?

Do they addicts have to self report to get treatment? Do we force them?

I wonder could this be expanded to other areas. Say you run a ski-resort. Any broken bones and other issues are fully on you. To unlimited liability, piercing any corporate setup. Could really work for any sports too.

Food, tobacco, alcohol get more interesting... As there is bit harder time to assign blame of each meal. Maybe in those cases the claimants should be able to fully list everything they have ingested over say past 10 years. So that liability can be fairly and exactly distributed.

Ski resorts do not try to break legs of skiers on purpose. They already have enough incentives to remove danger.

Betting companies employ all the tricks to make you a gambler. The more you loose, the more they target you. And if the gambler atops playing they literally go put of their way to nake them relapse.

Don't be intentionally daft. Skiing and sports aren't notably addictive, and don't notably cause harm in society.

Should we also make sugar companies, coca cola/pepsi pay for people that become obese?

I would support taxes based on long term health effects. The sugar tax in Mexico had measurable impacts IIRC.

agree with taxing, but that's not what OP was suggesting