I had basically this exact conversation with a close family member, who sees having children as being forced to give up on her dreams of being a writer forever, which I just don't get (she's already written and released 4 novels which have made some decent money, just not enough to do it fulltime, and still has a day job in marketing that makes good money).
For a little while it will likely mean a shift in focus, sure, but that doesn't mean you have to give up on something forever. I've mostly taken a break from designing games the past couple of years (unrelated to children, just not as motivated lately, there's so many great board games out there already I'm trying to just enjoy playing them for a while), but I haven't totally given up on being a game designer (plus I've already released several games in the past, that can't be taken away from me, even if basically no one is still playing those games nowadays).
Plus children could also help enrich your life experience that lead to further inspiration for your creative efforts anyway, especially since it seems like the adult life experience society encourages nowadays seems to be sit in front of a computer all day for a day job, sit in front of a computer all evening for side hustle, get takeout, doomscroll/tv for a bit before going to sleep, repeat.