Palliative care or nursing home is where he can enjoy he's remaining years.
He needs the care and attention that these places specialize in, not some sleazy brothel down beach road for cryin out allowed.
90 years old is a pretty good innings that's for sure, and with the proper care and rest he could see 91 .... we don't know, but if he's out staggering around Pattaya's go go bars and massage shops he'll certainly risk his future years and health.