Only those who feel thirsty drink water. Similarly whoever has spiritual thirst should pray. However as the light in the room illuminates a small area, the light from the street or hill illuminates larger area. and also the deity in the temple illuminates all the minds of devotees.
The prayer at home is like the light in the room for family members only and prayer at temple is like Sun for every-body. So we can pray at home and at temple too.
The thought of the Lord should be in our minds constantly as a working mother busy at work, still keeps thinking of her little one at home.
Prayer should not be confined only to morning hours in Pooja mandiram. It should be practiced all through our activities as the Lord is in our Hridayamandiram constantly.