I would always recommend to send your toddlers to daycare, it's really boring to stay with the nanny and the toddler until the parents are back. I sometimes play a single mom with her toddler daughter, the mother works in the social media career and can (thank goodness) work from home, but when she goes to work and the nanny is there, they always make food in party size (too much for a household of 2 sims), which I can't even drop into the fridge, so it spoils very quickly.
These nannies are just useless.
@EgonVM I never noticed that the daycare gives and raises toddler skills, another reason to choose this option. :)
