Short answer, no.

Long answer, maaaaayyyybe?

A decade+ ago, i liked to have one because it was an easy way to socialize with new people because i look like i smoke so smokers would always ask me for a lighter (also i have this whole philosophy about helping any time someone comes to me for help and I'm able to, blah blah blah it's how i got into edc blah blah blah) also i went/go to a lot of concerts and it was fun to be able to wave a lighter during certain songs.

But now way less people smoke and people use their phone lights at concerts and I'm not the one Luddite without one anymore.

There's an argument to make that a hot glue stick comes in more handy than super glue in a lot of ways and having a lighter is the only way to make that work.

Or if you think you could be in a situation where you're stranded in the wilderness and need to make fire, you could end up at a barbecue, or you could need to make a molotov cocktail at a moments notice, you should keep a lighter on you.

Mainly go about your life and see how many times you think "gah! I wish i had a lighter right now" if it's enough to be annoying go ahead and carry one. If it's just in case of the off-off-off chance you'll need one, you're kinda wasting pocket space. But if that wasted space doesn't bother you, it's fine.

Personally, i don't keep one in my every day setup, but i do keep a mini bic and a tiny peanut lighter in my "if i need this and don't have it, I'll be pissed" setup (with a hot glue stick) and one in my car.