From comments I've heard in the best, gas is generally considered a good thing, since it's cheaper than electricity, and you don't have to wait ages for water/hob to warm up. The downside is that due to my anosmia, I wouldn't smell anything in the event of a leak. I would of course install gas detectors, along with smoke alarms. However, I can imagine a situation where there's a leak in the morning after I leave for work, and the alarm bleeps all day, but then the battery runs out before I get home in the evening. I come in, turn on a light - BOOM!