They are gas charged; When visibly leaking fluid they qualify as JUNK due to loss of gas support, the damaged struts may also reduce tire durability.
It is a personal/economic decision, If the ride quality does not bother you it's not a safety issue.
I will "note" that when you replace them, the change in ride quality is amazing.
Note: This repair is a simple DIY.
PeachPartsWiki: Front Strut Replacement
.
__________________
ASE Master Mechanic
asemastermechanic@juno.com
Prototype R&D/testing:
Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician.
Noise Vibration and Harshness (NVH).
Dynamometer.
Heat exchanger durability.
HV-A/C Climate Control.
Vehicle build.
Fleet Durability
Technical Quality Auditor.
Automotive Technical Writer
1985 300SD
1983 300D
1984 190D
2003 Volvo V70
2002 Honda Civic
https://www.boldegoist.com/