If you have your own mum to take care of baby at least till she's about 3 years old or so, will you continue this arrangement or send your baby to school earlier. Why and why not?

I sent my son to childcare when he turned 2 years old - am a work-from-home mum and my parents are available to help on weekdays too. The reason why I sent him to childcare is to develop his social skills - he also has isolated speech delay and as a result of that, he gets really frustrated when other kids talk/babble/shout because he doesn't know how to respond to them. As much as I would've loved to keep him at home, I felt that he needed the social and learning skills which I would not be able to give him (at an affordable rate at home) - and I made the effort to bring him to play and spend time with him whenever I can, even before he was in childcare :) I also needed the free time to do some self-care and run errands :x