Backpack leashes!!!

I have a toddler 15 months now, I am 31 weeks pregnant due in April. What is everyone’s opinion on the back pack leashes? I’m considering purchasing one for my toddler because he wants to walk everywhere but doesn’t listen well at all, but I am so afraid of people thinking I am a bad mom because I have my child on a leash. I am also a young mom only 21 so I get a lot of back lash about having 2 kids & all that, so I over think every parenting decision I make. Lol just wanting to see what everyone else thinks..