One is at work on lates (22)
One (20)- not a clue! She doesn't live at home, lives near work her shift pattern means no 2 days are the same timings
One (18) - good question. Might be coming home from college with DH (college is 25m away, it's a train, bus that's every 90 minutes, then train/bus to our village. But she might have asked her boyfriend to meet her off the train. She knows she needs to be home at a reasonable time, she has to leave at 6.30 for college tomorrow.
Honestly, not neglectful! Just circumstances meant they had to become self sufficient early and we do all talk!