3. Only Yourself
It should be about sharing and both of you should talk. The conversation should be even for both sides. You should get to know your date better and vice versa. If you only talk about yourself; it will be rude and pointless. So; make sure you don't spend the entire time mentioning about just yourself.
4. Your Imaginary Future Family
It's great that you have relationship goals and know what you want in a partner. But; talking about your expectations from your match about getting married and having kids should be the topics of other dates; not the first date. You will probably freak your date out.
In conclusion; these are the topics you are adviced not to talk about. To find someone to go on a first date with; you can join Waplog down below and meet someone new for chatting; flirting and dating.