DSD is 25. She moved in with us approx 4 months ago after her mum kicked her out (separate story there)
Anyway she has been hanging out with a group of girls drinking and we suspect taking drugs as we have found wraps in her car although she insists it's the other girls she drives round and wouldn't touch them.
These girls are a couple of years younger than DSD and don't drive. They will constantly ring her and ask her for lifts to places etc. She will frequently go drinking at one of the girls houses and stay over etc.
They never offer her any petrol money and money has gone missing from our house which DSD has admitted to taking and has spent on alcohol and Christmas presents which have now been returned.
AIBU to think they take advantage of her?