@Success3 I know many respectful young people and don't see all people of your age as being guests to avoid. One of the issues with people in your age bracket, even if they aren't wild partiers, or disrespectful people, is something that isn't a put-down, but quite normal and natural. That is, the majority of 18 and 19 year-olds have never owned their own home, they have never had to pay a utility bill, they have never had to spend their own money on a new appliance or appliance repair, purchase a house full of furniture, etc. So they may do things unconsciously and be unaware that they are causing damage or running up an unnecessarily high utility bill. Put drinks down on nice wooden tables, leaving rings that have to be sanded out and refinished, fire up the washing machine on full load to wash nothing more than a tee shirt and a pair of jeans they want to wear that night, grab a clean white towel to mop up a spill that will stain the towel beyond redemption, drive their car across the grass without regard to the fact that it will wreck the lawn, things like that. My own daughters and their friends did things like that when they were your age. They weren't destructive or uncaring people, they just didn't think about things like that, because they had never had to pay to repair that kind of damage, it's normal.
That's not to say that people of all ages don't do things like that, it's just a lot more prevalent among the young who don't have enough experience in life.
Airbnb has only been around for 12 years. As you are 19, that might seem like forever, but prior to that, where do you think young people who lived at home with their parents, or in small apartments or student housing had get togethers and parties? No one rented entire private homes for that sort of activity, but now it seems to be something people expect to be able to do. Young people would go on camping trips together, gather in parks, meet at a club, stay in youth hostels when they travelled.
I've had many lovely young guests, but I only rent a private room in my home for 1 guest at a time. But I would be reticent to rent to a group of young people if I had an entire house rental, for the reasons I stated above. I do think Airbnb should raise the age for booking, because most hosts feel anxious about renting to a young age group and it's not fair for those who are old enough to join to be turned down on the basis of age. 21 would seem a reasonable age to be trusted and for hosts to feel more at ease. People usually mature a lot between the ages of 18 and 21, as they leave home and strike out on their own and are faced with adult responsibilities like paying their own utility bills, learning to budget so they can afford to pay the rent, and having to pay for repairs for things they might inadvertently damage.
