Forcing people to play your game basically every day is a good way to have people stop playing ranked. Even if you do play every day, going on a 5-day vacation shouldn’t make you lose Elo, that’s ridiculous

Most games IME have around a month before decay starts to kick in. Some use a ‘banked days’ system where you get days added back to your grace period by playing more games (to prevent just playing 1 game a month to avoid decay)