Enhanced Screentime Password

Hi, I am a parent and like I imagine all parents the easily crackable 4 digit Screentime Password is the bane of my attempts to limit the content and use on my kids phones. If you guys found a way to offer a second layer of protection, one parents can get thru but kids can't, like a second, longer password, either just more numbers so it is not easily guessable thru sneakily watching and process of elimination or using the full keyboard so they don't know how long the password is making it very hard to guess, it would be godsend and vastly increase your audience to basically every parent that uses Screentime.