Welcome to planDisney, Jesus!
I'm so glad you stopped by with your question. As a father of two young Mouseketeers, I am heavily reliant on a good double-stroller for my Disney vacations. Not only do the kids need a space to rest their tired, little legs, but strollers are great places to store snacks, drinks, sunscreen, etc.
You'll be pleased to know that you can absolutely bring a double stroller into the theme parks. You just need to ensure that your stroller is within the dimensions limit of 31" wide and 52" long. However,
you cannot bring wagons and "stroller wagons" inside the theme parks. If you don't have a suitable stroller from home, you can easily
rent Mickey and Minnie-themed single or double strollers at the Disneyland Resort. You can rent them on a day-to-day basis, or rent them for the entirety of your stay. Also, did you know that you can even rent a stroller from an outside company? There are several companies that deliver strollers to your hotel. For example, ScootBug, which is an official Disney Featured Provider, will drop off and pick up strollers (and other mobility devices) at your hotel. You don't even need to be present! My brother and sister-in-law did this in July and had a great experience.
Make sure you spend some time in Cars Land, Jesus. My kids loved
Mater's Junkyard Jamboree and
Luigi's Rollickin' Roadsters. Here's a tip: make sure you're in Cars Land when the sun sets for a special (and fun!) surprise.
Have a great trip, Jesus. Thanks for stopping by planDisney!
Mike