It really depends on why you want to learn to dance:
If it’s just to meet women then I would suggest there are much easier and less time-consuming ways, but if you enjoy various music and dancing to it then get involved. There are usually lots of girls to dance with and always new people to meet especially if you like to travel and go to festivals/congresses which they have all over the world. However, it can become a bit stale if you only ever go to the same place/class to dance.
As
@James D said if you’re not passionate about it then it will always come across as fake. If there’s a particular type of music you prefer then obviously go for that.
If your preference is to get out and meet people while dancing, then you need to research what’s available in your area. All areas will have different events going on and the age-group and mix will often vary a bit, my opinion/experiences are below. Usually a 60-70% Women to 30-40% Men but this is also quite variable.
Remember that in most dances the man is expected to lead so you need to be able to do the dance steps at speed without thinking about them while planning what steps will follow what you are doing. In addition, you also need good balance and fine motor control in order that you can guide or lead the lady in the correct way at the right time. If you’re not leading, the dance won’t work but when you can lead it gives you a huge compliance boost when dancing with beginners but with those that can dance having a lead that is anything but good will have completely the opposite effect – just a bit of a warning there.
Ballroom (Waltz, Foxtrot, Quickstep, Tango, Viennese Waltz) &
Latin (Rumba, Cha-Cha-Cha, Samba, Jive, Paso-doble) – Socials can be good and varied, age range in my experience is older 45+, but lots of dances to learn in order to really be able to go out and dance socially.
Argentine Tango - fairly easy to get started, age range typically 25-45, being able to work with Spanish based languages helps interpret move names. Fine motor skills and balance are the biggest challenges.
Salsa (Cuban, Crossbody, LA, NY. There is also Rumba & Cha Cha Cha which are the originals the Ballroom version is based on) – fairly easy to get started, age range typically 25-45, again language helps. Thinking ahead is the biggest challenge as most Salsa is fairly fast.
Bachata – (Traditional, Sensual, etc) – fairly easy to get started, age range typically 25-45 but quite a lot of double time steps (syncopated) which makes more complicated moves hard to get to grips with
Kizomba, Semba, Tarraxinha – looks easy but it's not, and also it's not a "showy" dance. Being a good lead takes A LOT of practice with an already good dancer so takes a while to get to grips with. Age range can vary depending on class and location 25-65+
There are clearly other dance styles like Bacha-tango but they are really derivatives of the other dance styles here.
As you can see I get a bit passionate about my dancing, hopefully you find it useful.
Having said all that, it has helped enormously with my confidence and comfort levels around beautiful sexy women. As I said at the start, if you’re not passionate about dancing then there are much easier ways to meet.