Helen thank you for your note.
First 5 lines under rules and regulations, in all listings, don't know how much more I can put it up front ...
Not safe or suitable for children (0-12 years) - Pool does not have a safety fence.
Check-in time is 4PM - 8PM
You are in the UK, we are in Florida USA and here the legal age in certain aspects is 21. You can sign a contract at 18 however, if you want to rent somewhere, landlonds may have their own rules.
We do not discriminate against young poeple, only if they are under age we request them to be in attendance of a parent or guardian.
Differences Between US and UK Laws
There remain some significant differences. For example, in the US, age discrimination protection is only extended to employees aged 40 and over, who allege that they have been discriminated against by reference to younger workers. In contrast, in the UK, this protection will apply equally to a younger employee alleging discrimination on the basis of his or her youth.
As an example: liquor stores do not sell to minors / persons under 21 in Florida, this is not discrimination but merely law to protect societey.