Ref. No. 1898/43-1786
In the name of Allah the most Gracious the most Merciful
The answer to your question is as follows:
It is mustahab only for those who intend to sacrifice not to cut their nails and hair during these ten days. And the adults who are not obliged to sacrifice can cut their hair and nails like normal days. (2) It is permissible to have sexual intercourse with one's wife during these ten days.
And Allah knows best
Darul Ifta
Darul Uloom Waqf Deoband