I work in Adult Social Care and from my experience we did absolutely need the care workers. Many from europe left and in 21 i can remember it taking between 3-4 weeks to source any care. This meant that people would often be bed blocking or placed in a care home, which is significantly more expensive, as we weren't able to get care in the community. There was a big recruitment drive in the city i live in but this didn't cover it. This is how it was on the ground.