Garaging your car.
My last car altho it was garaged regularly succumbed to substucture rot (rust).
Aside from it being known to have that problem with age(10 years+) and a few whacks which may have opened up seal joints:
I believe,and others Ive talked to agreed that things were accelerated by putting a wet car,into a cold damp garage.
I operate something like this now:
If when I arrive home and its raining,the car has had lots of road spray/mud buildup n so on AND there is a good chance the rain will stop overnight + there is some wind.
I leave it outside
If theres a chance of heavy ice in the morning or really low temps I garage it.
Its more a case of,this is a damp/hi humidity part of the country,in coldish winter temps my car never dries in my unheated garage and so on.
Like if its not raining when I get home,but has been raining earlier and Ive driven thrupuddles,truck muck and the car is pretty wet underneath: I leave it out to dry and drip even in a cold wind.
Putting it in the garage,I just see pools of water in the morning.
I suppose its a judgement call/depends on how "dry" your garage is/salt in the air if close to the sea etc etc ,