How can I teach my 4-year-old to ride a bike with training wheels?

To teach your 4-year-old to ride a bike with training wheels, start by adjusting the seat and handlebars to the right height. Encourage them to practice balancing and steering in a safe, open area. Hold onto the back of the bike to help them get a feel for pedaling and steering. Gradually let go as they gain confidence and balance. Praise their efforts and progress to keep them motivated. Remember to always prioritize safety and provide positive reinforcement throughout the learning process.