Subscriptions are coming for the affordable / reliable as well. Toyota coupled the remote start keyfob into the subscription system because it's the same module for the key fab as it is for the smartphone remote start. Kia and Hyundai don't offer factory key fob remote starts either, it's through their respective remote services.
GM and Stellantis plan on adding subscription services to their offerings in the next 5 years and Ford hasn't ruled out the possibility (or at least they're playing coy at the moment). I haven't heard anything about VAG, and the rest of the Japanese makers, but I assume they're keeping an eye on how the market will respond to this idea.