Which do you think is more convenient for parents with toddlers? Stroller or Carrier?

For me carrier. It's too bulky to bring strollers. We're also afraid of escalators. Using elevators is not convenient as well because you have to fall in line and it takes several minutes for you to get in. So we prefer carriers. Although, there are compact and foldable strollers like the Pockit brand. But, it's somehow expensive.