I created several attributes in "product" in admin / commerce / config / line-items. Now I want to relate:

Attributes:
-children
-age1
-age2
-age3
...

Children: 1, 2, 3, 4, 5, 6

if we choose option 1, show only the attribute age1:
age1: 1, 2, 3 ..

if we choose option 2, show only age1 and age2 attribute:
age1: 1, 2, 3 ..
age2: 1, 2, 3 ..

respectively and so ...

Is there any module that does the same functionality as uc_dropdown_attributes for commerce?
and if I want to raise the price of the product according to the chosen atrituto the line, what should I do with rules?

example:

children = 3

the total price would be= product price x 3