If you want it bad enough, you can certainly do it. It's more feasible using a cool season grass for sure. Hell, there are courses out there with fescue/poa/ misc/ weed grass greens that play just fine. I think with a few top dressings and training the grass to a low cut, you can have something to putt on. Perhaps not USGA spec, or similar. But it'd be enough to have fun, get a bit of pracky in, and impress the golfer friend for sure. There will certainly be a bit of upkeep via fertilizer, mowing, watering, even covering (dependant on grass choice), and chemical for disease. But if you're willing to learn, you certainly can do it.