leave someone to their own devices

US /liːv ˈsʌm.wʌn tuː ðer oʊn dɪˈvaɪsɪz/
UK /liːv ˈsʌm.wʌn tuː ðer oʊn dɪˈvaɪsɪz/
"leave someone to their own devices" picture
1.

deixar alguém à vontade, deixar alguém fazer o que quiser

to allow someone to do what they want, without telling them what to do or trying to control them

:
If you leave him to his own devices, he'll probably just play video games all day.
Se você o deixar à vontade, ele provavelmente só vai jogar videogame o dia todo.
The children were left to their own devices while their parents were out.
As crianças foram deixadas à vontade enquanto os pais estavam fora.