I am 47 years old. Is it necessary to transfer social security from Dongguan to Shenzhen?

I am 47 years old. Is it necessary to transfer social security from Dongguan to Shenzhen? If my friend's household registration is in Dongguan, it is unnecessary. If I have a house in Shenzhen, I suggest moving to Shenzhen.

If you want to transfer, it's actually very simple. When you go to Dongguan, you pay at the social security bureau corresponding to social security (usually the social security bureau above the town level), issue a social security transfer form with your ID card, and then go to Shenzhen Social Security Bureau with the transfer form, so you can transfer the renewal.