Air carrier pilot reported issues with fatigue associated with inadequate rest and company policies involving FAR 117.

Narrative

FAR 117 and Company policies are inadequate to ensure proper rest opportunities. A 10-hour minimum rest; allowing 30 minutes for round trip transportation and 8 hours of sleep opportunity; a mere 90 minutes of rest remains to check in to the hotel; eat; exercise; prepare for sleep; allow for hygiene; and prepare for the new work day. Often; set hotel transportation schedules further eat into the 90 minutes of 'personal time.' Ninety minutes is insufficient after a sometimes 16+ hour day to achieve adequate rest. Furthermore; Company's reliance on early morning departures often requires attempting to sleep as early as 6 PM body clock time to attempt 8 hours of sleep. Proper hygiene; exercise; nutrition; and rest are important for personal health; even more so during a pandemic.Company relies solely on legal minimums; without opportunity to mitigate fatigue. A Pilot's only option is to declare fatigue and return to rest. A fatigue call should be an anomaly; used when unusual events occur; not the only mechanism in place for a Pilot abused by Company Scheduling practices; to ensure safe operations of flight. Contractual compliance is more of a guideline for Company. They seem to be reactionary; rather than proactively complying with the fatigue mitigation requirements limiting duty day.Flight duty app does a poor job of ensuring legal and contractual compliance. It seems as though there is a 'set it and forget it' approach. Once assigned; it is the Pilot's responsibility to ensure compliance; rather than it being a shared responsibility. Flight duty app's continued rerouting of Crews; affected by other operational difficulties; subjects additional Crews to long days; short nights while creating further operational challenges of displaced Crews.Company provides fatigue mitigation training through distance learning modules. There is no opportunity to implement mitigation strategies when Company Scheduling response to questioning the efficiency or efficacy of a reassignment is; 'But it's legal.' Company needs to do better than reaching for the bare minimum when it comes to something as paramount to Flight Safety; as Crew Member fatigue.FAR 117 needs to be improved to adequately address fatigue concerns. Both [military branch X] and [military branch Y] require 12 hours of off-duty time to allow for transportation; nutrition; exercise; hygiene; and rest. Ten hours is insufficient to allow for each of these necessary part of healthy human existence. Company needs to treat its Crew Members as people; not machines. Repetitive long days and short nights increases risk. A Pilot overestimating his/her condition and ability increases risk. Mitigation strategies need to be emphasized rather than relying on a fatigue call as the only mechanism to repair Company's inefficient scheduling practices