What are the obstacles do single mothers face in raising up their kids alone?

There comes a moment in everyone's' life when they lose their partner to divorce or death. But the major blow comes when it's a mother who is left to manage small kids without her husband or partner.
Because whatever happens, whatever century we are in, single women are considered as opportunities for vile men to jump at them. And with the kids to manage, life goes from 100 to 10 within the day itself. Remarriage is also hard, because of the risk of having a 2nd husband who could abuse her kids.

The obstacle list goes on.
What obstacles do you know that single mothers go through in raising their kids?

• As single mothers they should take sole responsibility for their child care which can add more pressure,stress and fatigue on them.
• They need to consistently give emotional support and discipline their child to avoid behavioral problems in them.
• They need to manage the struggles with lower incomes and less access to health care.
• It's difficult for them to Juggling with work and child care