Daycares get dirty. There is no avoiding it and the only thing you can do is pay professionals to come in and clean up the daycare as often as necessary.
Nowadays, schools are cleaned by teams of trained professionals in tandem with on-site janitors.
If you need to strip your Vinyl Composite Tile(VCT) floor back to its bare surface, you need to talk to a VCT floor stripping service provider.
VCT flooring is designed to be stripped, cleaned, buffed, and sealed at regular intervals to extend the lifetime of your floor.