Can a 16 year old stay in a hotel?
Technically, the 18 year old is an adult and has the right to book and pay for a room, and be responsible for any minor in their care. So, there shouldn’t be any problems providing you have your parents consent to be with that person at that time. You might have problems if this person is your partner. While the age of consent is 16 in WA, it’s still possible a hotel would refuse to allow a 16 year old to stay in the hotel with someone who is not a relative.