Do sex and age bid adjustments work if multiple people use a computer?

Question

Yandex.Direct

Is it worth adjusting rates by gender and age if, for example, an adult and a child use a computer? Will this negatively affect the effectiveness of the advertising company?

Answer 1

Costs. Yandex itself admits that there are 20% of such "collective" computers, because they are not unambiguously recognized, then the adjustment simply will not affect them

Answer 2

Before setting adjustments - I would recommend collecting statistics on the cost of a conversion for each group, as sometimes there is no need for adjustments, or the results may be unexpected, for example, not quite the target group may - in fact, give conversions cheaper.