Don't think so. At least not in the rest of Europe. Seniority is quite often by law the replacement for age in the determination process for promotions. And even age in itself is not always discriminatory but required by law as one of several points.
For example, if a company has to fire workers over here they have to do a selection whom to let go based on seniority, age, number persons that are living off that income and any handicap of the employee. How those four points are weighed is a thing that has to be negotiated between working council and company, but all have to be taken into account. Age doesn't always have to be a positive thing either, as those old enough to be close to retirement age can be let go first. Quite interesting too, as only workers that can do each others job without any additional training can be considered in one list there needs to be a separate list for captains and first officers. Getting that upgrade is not always the best thing in terms of job security.
Even for vacation days it is legal that older employees (above an age of 55) do get more days vacation per year as they do need longer recovery periods.