he likes pushing the stroller

Suseela

So, he is 15 months old. if we take him out to a park or a shopping mall, he dont play with any of the toys are swings or any thing in the park. he just wants to push the stroller or shopping cart. I dont know how to deal with this and buy the similar kind of toys for him.

please suggest me what kind of pushing toys I can buy for him for his height. thanks