I'll chime in here and note that, until very recently, there wasn't an airbag system that really appealed enough to ME.

The affordable ones, now long in the tooth, required a tether. The nicer ones were built into vests that weighted more, were hotter, and sometimes required a subscription, meaning a billing error could result in a nonfunctional safety device. Um, no.

AlpineStars released one that was ALMOST right a year or two ago called the Techair 5. It was (is) accelerometer driven, so no tether, and while it has an app it doesn't require a subscription. However, it IS heavy, and it IS hot, and it DOES require that you mail it in to be serviced after a deployment, so that was still a no-go for me.

However, last year AStars released the updated TechAir 5 Plasma, which has all the goodness of the original TechAir 5 while also being materially lighter and cooler -- plus, the canister can be replaced by the end user. It's spendy ($800 or so), but I bought one immediately. I wear it more or less every time I get on the bike. I live in the American South, so when I say I'm not any hotter wearing it than I would be without it, you know it's vented well.

(In fact, I wore it on a 4-day road trip between where I used to live (Houston) and where I live now (Durham) 2 weeks ago. Was it a hot trip? Absolutely; I was riding a motorcycle in TX, LA, MS, TN, and NC in the summer. Did the airbag make me less comfortable? No.)

Hopefully these go from being expensive pieces of gear that only few have to being completely normal/common-place. They are a great technological improvement but right now they are out of the budget of most of the motorcycling world (which outside of the West skews heavily towards lower incomes).