I don't know if IABU.
A friend came to stay with her 2 DCs, they always take their shoes and socks off in the house. As do my 2 DC.
One of the DC had a lot of verrucas, which I did not know about until they were due to leave. They had no treatment on them ( but the Mum does treat them every so often)
AIBU in thinking that the DC should have worn socks?