Alexander watches Paw Patrol with fervor, bowls his baby brother over with hugs and does everything with gusto.

What the 3-year-old West Chicago toddler can’t do yet is speak more than a few words. His balance is wobbly and he isn’t able to let his preschool teachers know when he’s hurt or scared.

When his mother, Hilda Garcia, had him tested, the youngster qualified for five therapies through a U.S. program dedicated to treating developmental delays in babies and toddlers — treatment designed to help Alexander develop the tools he needs to thrive.

The relief she felt in identifying what he needed was short-lived.

The federally mandated Early Intervention program is plagued by chronic staffing shortages nationwide, leaving thousands of desperate parents frustrated: They know their children need support, they’re aware of proven therapies that could make a difference, but they have to wait for months to get the help they need.