Sheikh ibn ‘Uthaymeen raḥimahullaah said:

“It is from wisdom that a person performs his voluntary prayers at home, so his children can see and learn from him and so the womenfolk can follow his example. Also, this is so his house does not become a grave wherein no prayers are offered.”

[شرح بلوغ المرام 3/46]

Note:
The voluntary sunnah prayers after the fardh prayers are best to be prayed at home as well, it’s more rewarding for men to pray them at their homes than in masaajid.