Parents with children who are close in age gap

Hi I have 2 kids who are 2.5 years apart. I realised the baby toys that my elder liked before and could really figure how to play(not those battery toys). However my younger one doesn't seem to take interest in the same baby toys as her elder brother. Only some baby toys they liked the same (elder fav toys when he is baby) and some no. My concern is I'm still keeping the baby toys that younger one doesn't seems to take much interest in but to me I want her to learn and practise her fine motor skills playing the toys. She is 24 months old now and I realised if she likes the toy she will figure and know how to play. But when she doesn't like the toy, no matter how I rotate the toys since 1 years old, she still doesn't show much interest. I'm trying to clear baby toys already so I'm also quite hesitant until she is able to practise the fine motor skills for that toy, for example turning the knob etc. Thing is my elder one can turn the knob when he is 16 months old and I know different babies grow at their own pace. My 24 months old can sort colours, knows body parts, ABC, can match picture to picture, play pretend feeding animals etc but I'm still waiting for her to turn the knob and match the shape sorter toy. Do you think I should just give away the baby toys or continue to wait it out? She already seems uninterested I kept bringing out and keeping the same old toys. 😅I just want her to learn and practise new fine motor skills! Anyone encounter same situation as me? Also cause I wanna declutter 😅