Above all: You don't have to change your life because of a ventilation system. Tilted windows... firstly, significantly less air exchange than with a ventilation system (especially noticeable in the morning after sleeping, a ventilation system simply does much, much more, preferably even CO2-regulated). In storms, in cold weather, no matter what, fresh pre-warmed air comes into the house. No cold drafts, no banging windows, no obligation to worry about it. You can still leave windows open wherever you want, it doesn't exclude that.
But OK, some people simply refuse any progress, that seems to be the true clash of civilization. "Back then" everything was just better.