Oh don’t worry, mine do that too! Anything my eldest has, the youngest wants it too, or wants to copy. They’re constantly aruging over the trampoline as whenever he (eldest) gets on, she (youngest) gets on, but he doesn’t want her on it so he climbs off, so she climbs off. He immediately sees its free again and gets back on, and repeat over and over and over and they’re both complaining going “daaaaadd!!!”.