Earlier quoted context omitted.
Is there something intrinsically wrong with giving someone 30 days' holiday per year? Surely this is the same kind of freedom to spend your time as you wish that Google (with its 20% time) is famous for? As you said, in Europe this is common, and the viewpoint that it "smacks of entitlement" is puzzling. Is it just a cultural difference? I'm don't think there is any evidence either way that this affects productivity.
In my experience Europeans have a different view of life than North Americans. Especially East coasters. In work I find they are more interested in perfection and creativity, and less so on productivity, output, and efficiency. Thirty days of holiday a year is affordable if North Americans would be fine with houses that were 13% less spacious, but most North Americans I met heavily optimize living space, where Europe…
Ignoring sick-leave and training that works out to 30 days / year off, they don't let you cash it out and there is a 25day cap designed to get you to actually use that time off. (Most people end up taking a month off every other year or so, they also let you go a little negative to encourage longer vacations.)
PS: They also do maternity / adoption leave, and give separate time off for funerals etc.